Yes, Yoshi's is my best stage. Battlefield works too I guess, but I just dislike that stage in general because of its weird edges, even though it effects my opponent equally. So I prefer Yoshi's much more.

Marth is one of my favourite matchups. The friend I've played the game the most with mains Marth, and it's one of my easier matchups in tournaments. I actually like playing against Foxes and even Falcos too, even though they can be quite annoying sometimes. I think that's mainly because it "feels better" to smack those two around, I guess.

...also, Samus. And Peach, as long as it's not Armada's Peach. I've played his Peach once, and it wasn't pretty. I think it's the only time I've been 4-stocked by a Peach Player. At least that I can remember. But hey... he just kinda happens to be like... the world champion and stuff, so I guess it's fine to get 4-stocked by him. At least I almost got him in KO-range. Well, except that his DI is so sick he probably would have survived anything anyway somehow.