I like how you tell us these things, but offer no examples or support to back it up. >.<
These variations in stages, or 'twists, as you referred to it, differ, obviously, per stage. Some stages have 'twists' that aren't so bad as to earn them a spot in the Neutral Stages list, while others shoot them down into the Banned Stages list. For example, in Melee, Yoshi's Island had a little cloud that circles the bottom area of the stage. This could, sometimes, save your life and even, however rare, win a match. Now this 'twist' isn't so bad as to make the stage a Banned Stage, but the rest of the stage was nice. So it became a neutral. On the other hand, if you take a stage like Flat Zone, the 'twist' becomes something that could easily, and often does, sway the results of a match. For example, the tools that fall from the sky could easily kill the guy with a high percent who is trying to up his chances of winning by camping. I just thought I'd elaborate on the idea about your 'twists' a little bit. You can't really say that a stage is good or bad just because it has or doesn't have a 'twist.' You have to take into account the numerous possibilities that a variation could offer and the detrimental potential the variations contain. Sometimes the randomness factor of one such variation is too high for use in competitive play, so it isn't really determined by whether or not you have the 'skill' to overcome it.
What do you mean by 'spamming' characters? Not sure how spacies are spamming... spamming 'what', exactly? >.>
I don't see how the Melee FD favors characters with tether recoveries. If anything, FoD offers some great opportunities for 'tether' characters, namely Samus (surviving from the bottom of the stage without a jump isn't that difficult.)
It seems like you're summing up all the characters by saying 'spamming,' characters with tether recoveries, and 'moderate/slow' characters. What about C. Falcon? Marth? They do superbly at FD. As for moderate/slow characters, I've seen a few Ganons do pretty well at FD.
Adapting to stages lol. Is the flatness of FD not something to adapt to? Just some things for you to think about.
As for the differences between the Melee and Brawl FDs..
Brawl's has a hangover ledge. Like wtf. In Melee's, the wall below the edge goes down a generous distances - wall hugging was extremely easy. In Brawl, on the other hand, the wall below the ledge stops very short then curves in towards the center, creating an empty space for you to UpB right into and die.
I, for some reason, found the look and design of the Melee FD much more relaxing. The Brawl one annoys me somehow. That's just preference though.
K I'm done with posting cuz I'm bored. Think about the things I said.
It is somethign to adapt, but the new one is more fair, no? Seriously, face a Falco as Roy there. It seems more like a counter-pick stage then a neutral stage in that matchup. I'm just MERELY STATING that Final Destination is not perfectly balanced, and not this holy stage people hold it to. In fact, Yoshi's Story, Battlefield, Dream Land 64, Fountain of Dreams, and Pokémon Stadium('s normal mode) are definitely more neutral in Melee. In Brawl, I'm just glad they made it smaller, which means more balance. Not that Final Destination SHOULDN'T be a neutral stage, but that it isn't the "perfect, most neutral stage ever", that certain people hold it to.
As for these twists, you can see Sakurai wanted to put some in almost every stage, but he didn't have time. Some like the Halberd' laser and giant bombs are easy to dodge, and can be used offensively. (same with the claw, I suppose). Some, like the Ultimate Chimera, can be used similar, but are more luck and randomness. This edge thing is more on the offensive, but it can be luck-filled, thanks to online and lag. When it's not laggy, however...things are MUCH DIFFRENT.
Once you know how the sides work and get used to it, it becomes a offensive weapon. I've actually "Trapped" people, thus killing them via these sides when they were ontop of Final Destination. It actually can be pretty fun...but when you play with lag....
And Icicle Mountain is much better? Every character has it's pros and cons and as long as the match isn't a ditto one character will have a better chance at winning based on the stage.
I am getting around it, but every so often it gimps a stock. You win some, you lose some.I can't be bothered to build a Melee FD. I might try to when I'm bored but other than that it's not on my to-do list.
You make it sound like I only play tournament legal stages. Just a few minutes ago I was playing on The summit. The only stages I don't play on are Mario Bros. [the screen stretch hurts my eyes], Rumble falls [I wanna fight not jump and hope my opponent kills himself] and 75m [too many hazards, too big, too many ledges, bad music and it's just one ugly stage]. I play all kinds of stages but sometimes I just want a stage that doesn't have some gimmick that kills you. FD's is subtle but it's still there.
Why do people make it sound like I want FD banned? I'm just saying that the stage gimps you sometimes and it's annoying but I still play on it from time to time. Maybe hate was a strong word but that's just how I feel about getting gimped.
Firstly, Icicle Mountain can go drown in it's piss, with
Brinstar Depths (sorry, I forgot it doesn't exist), Venom, Big Blue, Yoshi's Island Melee, Yoshi's Island 64, and several others.
Secondly, I'm not saying you ONLY play tournament legal stages only...although I do! (with Melee only, really)

I'm saying FD in Melee isn't the most neutral of the neutral stages. It IS a neutral stage, but it's not "perfect", or "perfectly neutral". I used to once think it was, until I faced a "basic" spamming Falco (basically how I play with the bird! And I secondary him!

) as Roy. OWCH!
All in all, I don't hate Final Destination. I think it is a good stage for what it is. It is just the certain people (definitely neither of the two of you I'm quoting) consider Final Destination the perfect, neutral stage. There is no such thing. If there ever was such a thing, it was Dream Land 64. Still, that doesn't take away from Final Destination being a good stage.
And just to show you that I'm such a tournament legal stage only player, the only stages I don't play are Mushroomy Kingdom, Mario Bros., 75 Meters, Hyrule Temple, Yoshi's Island Melee (I absolutely hate this stage, I'm sorry. Hill Billy Music, horrible V curve in, and the stupid center=fail), on and off Spear Pillar (Creselia or whatever is Satan reincarnated, and a stage KILLER!), New Pork City (although that Mother 3 Love Theme is calling me...), and Big Blue.
If anyone is a tournament steriotype, it's me!

Except for the fact my two favorite Melee stages are Rainbow Ride and Mute City, and my two favorite Brawl stages are Delfino Plaza and Castle Siege. If that's a tournament steriotypical player, then we might have to change "Fox dittos, 5 stock, no items, Final Destination" to Toon Link v. Diddy Kong, 5 stock, no items, The Summit!

C'mon Red, you should know by now I don't think that way of you by now. >_>
And The Summit is awsome, especially if the game isn't lagging, and you get eaten by the Balloon Fight fish. >_< And The Summit probably is actually is a tourney-legal stage (offline), lol! But ya, I do agree that Smashville and Battlefield are better. And that online, with lag, the edges can be a b****!...especially as Marth and Ike!
