Party Pooper!
Ah 'cmon. We can always start a flame war over something else...
Ford vs Chevy vs Dodge. Pretty well settled here since Ford didn't take a government bailout. Hard to support the others. {ducking for cover}
Remington vs Mossberg?
Bourbon vs other whiskeys.
Free weights vs machines.
Skiing vs snowboarding.
Charcoal vs propane.
Polished stainless steel cookware vs nonstick vs seasoned cast iron.
Blondes vs redheads vs brunettes. Obviously green-eyed auburn hair wins... ;-)
Any number of national and local beers.
The merits of any of the NFL teams vs some other team.
The merits of NHL, NBA, NFL, MLB, NASCAR, etc. for entertainment.