Can't really go wrong with big cats.
Those and bears. 
True. But then Hellboy and BPRD are two series that star real monsters, Ars Goetia demons, old gods and practices and their own take on more traditional "monsters" (werewolf, vampire, homunculus, ghosts, witches) and some celebrities, including baba yaga, vlad the impaler, Hecate, Raspoutine and the like.
I really love these series. Ever since Mike Mignola has adopted it it's been blowing my mind away.
It stars a very cool wendigo :
The were jaguar is hardly very sexy :
A large part of plot revolves around frog monsters that turn humans and keep a very gory cult :
There are a wealth of unexplained fancy monsters :