my vote is for NintenCogs featuring Barkus Fenix...it's the only one that i actually find amusing. there are too many that are just gears and mario mashups (including my entry)...whereas NintenCogs is slightly more left field, a good photoshop edit, and the user actually made an attempt to come up with a creative name instead of just "mario and gears videogame".
regarding the change to the voting, i'm glad you changed it. i noticed that people had been cheating, but i figured that i would look like a sore loser if i complained about it too much. i don't mean to call people out, but on the blog polls, you could view a map with markers for where all of the votes were coming from and i noticed that Super Marcus Bros. 3 was in the lead with approximately 65 votes, but there were only 3 markers on the entire map for it, even when you zoom all of the way in.