Porky means business.... whenever he goes to McDonalds
But all joking aside, reading through this forum too, I can see the misconception as to why Porky is seen as a villain and I can also see why considering Mother 3. I also don't hate him. In fact, I actually feel pity towards him. Why? Keep reading
*MASSIVE MOTHER/EARTHBOUND SPOILERS*
Talking to people in EB/Mother, those that refereed to Pokey were often horrible (pig in people's cloths for example). Itoi also stated that Pokey's childhood was horrible, and his parent's behavior only further solidifies their negligence towards him. His own younger brother Picky hints an insult at him right in the beginning of the game too. Pokey even mentions he and Ness are best friends, and his behavior in the beginning of Mother 2/EarthBound are eerily more similar to Lucas (timid and shy around others) than really anyone else. Imagine how Lucas would've turned out being granted the same life Pokey did. I'd imagine he might not end up so different. In addition, Pokey also says he was under control of the Carpenter like everyone else in the HHC and that he was also freed and asks Ness to forgive him and to be friends again. When Ness doesn't respond, Pokey takes it as a "no" and.... everything after is the result. Had Ness said yes, I have my doubts Pokey would've let Giygas free from the Devil's Machine, considering it would very likely mean the death of his one and only friend. His obsession to meet Ness again and be friends with him drives him to his madness, and the fact that he can pull things from the past to him (proven through repeative references to time travel and Ness's stuff), it's likely he planned to kill everyone using the Dark Dragon in Mother 3 (excluding himself, as he is immortal), then use whatever he used before to pull Ness to him, literally trapping both of them in the same time forever. This is further defended by Porky clearly stating he wanted everyone who "didn't like" him to be gone, implying he planned to kill them all off. Porky manipulating the wildlife to look "cooler" could also be justified by his desires to be friends with Ness again, as Ness did carry a grievance having to fight all of the wildlife in his own time and Porky's new wildlife being under his control. Something to impress Ness, if you will. Let's also not forget Lucas's home looked eerily similar to Onett after Porky came.
Pokey/Porky did do very evil things, yes, but I must remind you Claus/MM was kneeling before the last pin, rather than pulling it out and releasing the Dark Dragon. Keep in mind at that point he was also completely under Porky's control and at the command would've grabbed it without hesitation, ultimately signaling Porky intentially gave them a chance to fight for their world. Or perhaps he just wanted Lucas to understand Porky's hurt? After all, it's very clear Ness never did.
Now, about Porky as a brawler, I'm afraid I'm going to say no to it. The idea that maybe young Pokey could be a brawler is an interesting idea to say in the least, but I really don't support it as much as Ninten. The argument that Mother 1 is the least popular of the series and doesn't matter, all I have to say is why does that apply as an anti towards Ninten? Lucas and Mother 3 in general got so much more fans as a direct result of SSBB (me included). If Mother 1 isn't known, then placing Ninten amongst the ranks would be the perfect way to solve the issue. Ninten's sprite is also incredibly poor in Mother 1, so of course he'd look like Ness, but have you actually SEEN the two characters paired side by side?
Ninten has about as much similarities in design with Ness as he does with Lucas (also Ninten's belt isn't showing in this picture of him)...
Ninten's character would also be required to be unique from the other two because of his lack of offensive PSI. In turn he'd have to be a heavily close combat based fighter like Marth, Squirtle and Sonic who would have to heavily rely on combos to pull off massive damage whereas Ness and Lucas can fight while still keeping some distance.
Also, about Porky's mech, how would you figure the weight power and speed figure for his class? He'd clearly weigh a ton.
...I'm not joking...
And it is inevitably going to affect how he fights. Pokey with the mech legs seems like a really neat idea at first glance, but thinking about it just leaves a headache. it really doesn't make much sense considering his personality, whom the moves of the cast are often reliant upon to some degree, it doesn't have an appearance anywhere in any Mother game, and Pokey isn't really one who's known for running for obvious reasons.
Perhaps if you would be so kind as to tackle these issues before claiming superiority to your own character desired would be liked if you have any desires to see others join support for Pokey/Porky