Joker
Two-Face
Riddler
Poison Ivy
Basil Karlo (Clayface)
Copperhead
Solomon Grundy
Psycho Pirate
Victor Zsasz
Firefly (Garfield Lynns)
Calendar Man
Scarecrow
Mad Hatter
Killer Croc
Man-Bat
Arnold Wesker
Black Mask
The Penguin
Joker, Scarecrow, Riddler, Bane, Two-Face, Killer Croc, Man-Bat, Clayface, Zsasz.
Just off the top of my head.
For me it’s hard to see Solomon Grundy as a Batman villain. He debuted as an Alan Scott’s (GL) villain. A similar thing with Psycho-Pirate
I know but those two are constantly considered a Batman villain and well I like them as a Batman villain.
Two-Face, Riddler, and Scarecrow are up there among my favorites, but not necessarily in that order.
You are right @Joker1943 That's why Solomon Grundy is a boss in Arkham City.
Thanks
What do you think?