Tails
Cortana
HK-47
Yoshi
Luigi
Alyx Vance
Cube
Vivi
Cortana
HK-47
Luigi
Cube
Cube over Cortana
I probably shouldn't take Cortana that far. Tails vs Cortana was the one I stared at for the longest trying to decide on. Ultimately I decided whoever it was had to beat Luigi in the semis because Luigi as a finalist just seems weak, and I figured the factors that would get Tails that far would SFF him out against Luigi. I certainly agree with whoever said the first quadrant is the hardest to predict. Luigi vs Vance for the upper-right is almost a given.
I've also got some picks that don't look very good in retrospect, but who knows? Like Doc Louis winning two rounds, Frog as well, Daxter over Toad, Dom over Chocobo...
BTW, how the hell did they assign the spots in their bracket? It makes no sense. The #2 and #3 vote-getters are in the same division. Upper-right has 3 of the top 8, while the upper-left has just Tails. All the round 1 matches should be an upper 32 vs a lower 32, but quite a few of them are not.