Hmm in the first half year I had SSB was I best with Link. Then I moved on with Pikachu, Then Samus (Two months before I came to these boards), and last Capt Falcon. Now I'm going back to Link again.
Link- I liked his strong smash \/ and ^ A moves, and especilly his air moves. When I first trained with Link, it was based on his strentgh, a fast moves.
Pikachu- Well he's super fast, and has some good combos. But I moved on with Samus because I didn't like how Pikachu only has some few strong finish moves.
Samus- The queen in the air. One spike air move, the massive destruction napalm move, and a powerful backkick. I like how all the moves are different and can be used in almost every situation.
Capt. Falcon- Again I choosed a strong character with good air moves, though I still trained with Samus.
Link- Second time I began to train with Link, I wanted to make a beautiful battle style with him. So I use his boomerang often in a combo with tilt A. I use rolls more, I use more tilt A moves than Smash A moves, I try to get hit at least at possible.
I guess that I'm best with Link. And now I've created two battle styles with him which may help me in future battles.
I'm almost as good with Samus, Pikachu and CF, but I kill more and looses less lives with Link.