Ok I'm a huge Buffy 粉丝 and I've noticed most of these similarities myself. I 爱情 that two of my most favourite characters, while on the surface are very different, are actually quite similar.
CW Sources made a 民意调查 where 你 must vote for your 最喜爱的 CW bad boy. Damon Salvator from the Vampire Diaries is beating Dean right now! Like whaaat? Lets hunt that b*tch down ;)
A bunch of 粉丝 recording 或者 taking pictures of the exact places the 显示 was filmed(sometimes even the exact time they were filming a scene).It's quite interesting,check it out!