Love this! You're my first pick as it stands right now. Here's some feedback re: things that would make this the undisputed winner:
1) To be honest I'm not too sure I like the font face used for the typography. Any way to make it more playful?
2) Still regarding the typography, can you include it in some sort of round emblem (similar to what #3 ranked logo did)?
3) Do you have any more ideas for a different background than the blue ellipse used? If you had something similar to what the #2 ranked logo used, it would really push this to the top.
The perfect logo for me (which would win 100% sure) would be your illustrations (of the 2 characters) on a backdrop similar to #2 ranked logo, with the name of the company in an arc around it (similar to what #3 ranked logo did). It doesn't HAVE to be in a round emblem with a circle all-around the logo (like for example #5 did), because the backdrop used in your logo and in #2 already gives it a rounded look. So I guess if the name was in an arc around the illustration, it would still work great.
Lemme know if you have any questions. Looking forward to your next logo entry!