I like passion because if you care enough to feel that deeply about a pairing chances are you find really good reasons for supporting it :3.
Nasty debate is just...nasty. I had one girl online once use her physic major against me and pretty much say if I was passive aggressive (which I am, that is just me IRL) and didn't agree with her something must be deeply wrong with me mentally :P. Just..wah? O.o