I'm not good at these "Appreciation Thread" things, but basically I just found out there's a 616 Dracula and I wanted to create a place to discuss him. I'll fill in the gaps later.
Dracula first appeared in the Eponymous Bram Stoker novel where he tried to create a vampire den in London (insert Doctor Who joke here). He is considered by some to be the archetypal vampire (and, if you want tonget technical, werewolf).
A quick skim of his Marvel Wiki entry reveals that he's seperately fought Silver Surfer and Thor to a standstill, tried to marry Storm, and has occasionally crossed paths with the X-Men and Fantastic Four.