1. Pokemon
2. Street Fighter
3. Mario
4. Mortal Kombat
5. Syphon Filter
6. Call of Duty
7. Halo
8. Zelda
9. Super Smash Bros.
10. Mass Effect

Also Crash Bandicoot! How could I forget that.
Can't really think of 10 more

Forgot some: Pokemon
Earthbound
Starfox
Call of Duty

1.Mortal Kombat
2.Assassins Creed
3.WWE
4.Star Wars the Force Unleashed
5.Star Wars Battlefront
6.Grand Theft Auto
7.Marvel vs Capcom
8.Batman Arkham Asylum
9.Marvel Ultimate Alliance 2
10.The old Mario games
11.Prince of Persia
12.Gears of War
13.Soul Caliber
14.Aliens vs Predator
15.Dragon Ball Z games
16.MX vs ATV
17.Tekken
18.Street Fighter 2 Turbo
19.one of the Sonic games
20.X Men Origins Wolverine

But overall MK is my favorite.

^This!