I'm similar to KJ on this one. Marth destroys us up and down the road. Reason being, he's fast, and are floaty. If samus landed faster she could just Side tilt Him, but unfortunately he reaches us al,ost ALWAYS before we hit the ground. like he can get at LEAST halfway across Final D before we land and can successfully Side Tilt. that's like the only thing that can out range him, and only if he uses hid crappy dash attack.
70-30 for me. As for the pit MU it is no fun to play against campy pits. literlly the worst. we are floaty, so we can't controll how fast we can fall such as link can. Making us a huge target for offstage Arrow gimps. Rarely works because of how rad our recovery is, but oh BOY this gets annoying. Uhh our Nair will cancel out his arrows if we time it right, not sure about the lingering hitbox also does it. AH so does Fair, this will give you a shield from his arrows while recovering if your having problems with it.
Teams with these two are crap. I play both, know both and at BEST I'll find the teams okay, but that's only with people I naturally play well together with.
ANY AND ALL SAMUS': Don't fire homing Missiles in teams if it's going towards your partner. Hell don't fire any missiles. IF you are a campy Spamus, Charge your lazr. There are better things to do than stun your team mate while the enemy charges up a smash. Get your partner to throw the opponent, all of you should know exactly where your partners Char's backthrow puts the enemy, so just fire at that spot and make a cool looking/good team work kill.
Off topic as well: I heart Chinese food.