I hope you won't mind if I start consolidating this information in this thread. It seems like a good place to collect everything...
Starting with the big ones:
TERRA OBSCURA / SMASH (2001-2006)
Publisher: America's Best Comics / Wildstorm
Roster: Exclusively Nedor/Standard/Better characters including:
American Crusader, Black Terror, Cavalier, Doc Strange, Fighting Yank, Green Ghost, Liberator, Miss Masque, Pyroman, The Scarab and The Woman in Red
THE PROTECTORS (1994-1996)
Publisher: Malibu Comics
Roster: Exclusively Centaur characters, including:
Airman, Amazing Man, Arrow, The Clock, The Eye, Fantom, Ferret, Iron Skull, Man of War, The Masked Marvel, Mighty Man and Miss Fury.
PROJECT: SUPERPOWERS (2008-2010)
Publisher: Dynamite Entertainment
Roster: Assorted character from different publishers, including (but not limited to):
Nedor/Standard/Better: American Crusader, Black Terror, Captain Future, Grim Reaper, Fighting Yank, Miss Masque, Pyroman, Wonder Man
Fox Feature Syndicate: Blue Beetle, Dart, Flame, Samson, Skyman
Crestwood: American Eagle, Black Owl, Green Lama, Power Nelson, Yank and Doodle
Lev Gleason: Captain Battle, Daredevil, Ghost
Centaur: Airman, Arrow,
Holyoke: Catman
Hillman: Boy King and his Giant, Conqueror
Chesler: Dynamic Man, Major Victory
Columbia: The Face
Eastern: Man O' Metal
Dell: Professor Supermind and Son
and more...
Americomics (1983-2009)
Publisher: AC Comics
Roster: Assorted character from different publishers, including but not limited to:
Ms.Victory (Helnit), Phantom Lady (Fox), Black Cat (Harvey), Kitten and Cat-Man (Holyoke), Miss Masque (Centaur), Yankee Girl, Daredevil,