Live in a flat with five guys who are all gamers. As a result we have a Wii, XBox, Playstation, loads of DSses (and I could go on for another few lines). Brawl is the game favoured by most of us, so I tend to play it a lot.
Pikachu used to be my primary character, however I got accused of spamming (what do you expect, it's a spam character. B-down for the win) and ever since I have been trying to play with Link. I love the variety of the character; the bombs are awesome and I have always liked sword users.
I also like Ike and Marth for that reason, but since one of my flatmates always plays Ike I generally pick Marth (also Marth is much faster and his counters are great).
I am a bit tempted to go for the strategy of one of my other flatmates, which comes down to choosing 'random' each time and becoming good with all of them.
Toon Link and Sonic are the favourites of two other flatmates. Sonic annoys me. "You're too slow." Then I chase him until I smash him right off and tell my friend "Sonic BOOM indeed."
So yes. Love the game. My flat is very competitive, which can be fun but also rather strenuous.