I just rewatched both of the Hellboy movies and they are really great and fun. The CGI effects still holds up(cue the circlejerk comments) especially with the Sammael creatures or The Golden Armies (Can't find a proper link) and the make up and costumes are sick especially with Abe as well as the creature designs. The fight scene between Hellboy and Nuada is just plain awesome
Despite changes to the Hellboy character where he's usually serious in the comics but in here he's childish, he's still a fun character. The only thing that I'd disagree on is his relationship with Liz which doesn't happen in the comics
EDIT: Just to clarify, not all comic books movies have to be very faithful to the comics but I just stated it because the Hellboy movies get criticized for not being faithful