Man, now I'm sad. I didn't realize I missed so many of your smashfests that you'd be okay with MMing me but not the others.
You should know by now that I use any character I want. Personally I think Marth does way better against Toon Link and Wario than Falco does, and I only started Falco against you in the MM because I wanted to grind some EXP with him. And in the pools match my Sheik was dropping easy **** for free, which isn't something I'd want to risk in tournament. I can tell you even more about your general strengths, weaknesses, and playstyle based on your relative performance against my different characters, but that's something I usually say in person. :x
If you want a $1 MM you can pick which of the three you want me to be, but no guarantees I'll stay that character for your CP stage.