Ok wrestling fans... here are some more...

Mary-Kate vs. Ashley Olsen
impetigo vs. ringworm
ninja turtles vs. power rangers
An Ewok vs. Wee Man from Jack-A
Gatorade vs. Powerade
Penzoil vs. High viscosity thermal breakdown
Weird Al vs. Cletus T. Judd
Oprah vs. Skeletor
Johnny 5 (from "Short Circuit") vs. R2D2
Tastes great vs. less filling
Rumpshaker vs. Baby Got Back
Liberace vs. Elton John
Micheal Jackson vs. a 14 year old who knows how to kickbox
#1 vs. #2 (outhouse death match)
Jack Daniels vs. Jim Beam
A ninja versus... oh wait... a ninja can kick anyone's A$$. (For details see http://www.realultimatepower.net)