not to sound like a wise-ass but IMO it�s more like:
Doomsday - eye candy but poor compatibility (i.e. poor dehacked support)
ZDoom - classic look and cool editing possibilities (scripting, deep water etc.)
Have a look here:
http://www.zdoom.org/wiki/index.php?title=WADs_created_for_ZDoom,
try wads like Void, RTC-3057 or Dark 7. For running wads in ZDoom just drag and drop the wad onto ZDoom.exe.
Biff: haven�t played your map yet(feeling more like Q2 atm), but I will for sure. Have you considered to upload it to newstuff ?
ftp://ftp.fu-berlin.de/pc/msdos/games/idgames/newstuff/
I�m sure many other doomers would appreciate a new quality wad :) (there are weekly reviews at Doomworld)