Check out this fantastic Wiki page with tables comparing vampire traits. It covers everything from Attractiveness, Weaknesses, Reproduction and more! There are some hilarious hidden gems in there, I won't spoil.
Most hilarious/annoying thing, however, is the shaftiness our vamps get on the hotness scale. The Vampire Diaries vamps are rated "alluring" but the Buffy vamps are only considered "ordinary but often above average." Which Judgy McJudge decided that? Ha!
Thanks to Jen Benn, Buffyfest reader and creator of amazing Dr Horrible and Wes ornaments, for sharing this great topic! (via Boing Boing)