What the heck, me from two years ago?
First off, I'd only really call Megaman 2 and 3 my favorite games. I've played 4, 5, 7, 9, and 10 once each.
Second, I only had Zelda II on there because I played it at the time, I don't think I could call it one of my actual favorite games. Ok, maybe.
Street Fighter 3? Really? That's purely trying to seem cool for liking obscure things, I'm sure. Street Fighter 4 all the way. I like Street Fighter 3, but I haven't played it enough to really call it my favorite. And as far as favorite fighting games, Marvel vs Capcom 2 is undoubtedly my favorite.
Touhou? I've played it for a grand total of 30 minutes probably. It's a fine game, but I couldn't think of anything better?
Off the top of my head, my favorite games include Megaman 2 and 3, Shadow of the Colossus, and A Hat in Time, all games I've already mentioned. Plus Cave Story.
Favorite classic arcade game is Centipede.
Favorite fighting game, Marvel vs Capcom 2.
My favorite modern game is probably currently Sword Art Online: Fatal Bullet.
For puzzle games, I've had a love for Tetris in recent times, and I also really like Kickle Cubicle though I don't play it enough.
Honorable mention, Sonic Adventure 1 and 2, games I played recently and I both love and hate them. They're certainly not good. But something about them draws me in.
Then there's Godzilla Monster of Monsters on the NES, which I enjoy and play from time to time, just to play it, I never really make an effort to get far. I must enjoy it. I guess I'd consider it a guilty pleasure of sorts. I don't talk about it much, but it's pretty fun despite being simple and lacking.