Yup, played all of them.
Umm, no. Perhaps you've never played Batman Doom, the many Wolfendoom wads, Mordeth, Aliens TC, Osiris, Hacx, STRAIN, Massmouth, Obituary, etc, etc? Otherwise I don't see how you could possibly say that.
Of those, Mordeth and STRAIN have the best gameplay (to me), afaik Mordeth mainly uses it to replace sprites, not to butcher gameplay.
I have a lot of respect for those who created Batman doom as it looks quite amazing and original, but the gameplay is far below average. Surely you can't say that it has gameplay on the same level as the likes of requiem, HR*, k*doom*, AV, etc etc.?