Nope, untouched, they are still instant win characters.
I throw all 4 of them around like rag dolls as Big Daddy. Overpowered, sure, but instant win is certainly pushing it a bit.
The only character that's an 'instant win' is Fat Princess. (For me at least), I have a hard time kicking her can.
Probably because the few people that use her have mastered her to all hell.
Also, accidental kudo. This computer is slow as hell and I misclicked