weird i have not tried any of these, had i tried all of them i would be inclined to cast a vote.
i have however done some research on some listed above and i am a gamer.
i have tried some closed hfi 780 and i hated them, mostly the build and fit. i would think id prefer gaming best with closed phones, but that is surely up for debate. any open can gamers care to chime in??? an open can might even help you locate enemy better when playing call of duty.
i think i read the ad700 may be bass light look into that, but ad900 i haven't a clue. i am actually pondering some w1000 vs w1000x? anybody? and also the w2002 vs all the the audio technica except the leather head. audio technica fans please lend you opinions and impressions.
ive also read the open 990 have much bass but are also a bit bright, and ive read that beyer house sound leans it self forward. ive also read conflicting posts that say 770 were boring and neutral, and then ive read others say they have a lot of bass and keep the beyer house sound all while remaining closed. and ive read the 880 are more neutral and smoother? and those seem to be more popular than the other two. i might prefer the 880 over the 990 if the highs were more neutral i would think, but then the 990 has more bass slam from what i have read
outve all those mentioned i am actually planning on getting the m50's some day because for there price they are highly regarded, supposedly isolate well(important for me) and punch hard(also important to me) but i also worry they me be forward????????? ive read the audio technica house sound is usually forward as well
also if the 990 were closed i would already have bought the 600 ohms surely, but ive read beyer is working on a new closed 600 ohm. and why not make a closed 880 and a closed 990 600 ohm variation while they are at it.
ive never tried but many rock the semi open senn 650 and ive always wanted to try those too
i mainly use my denon 7000 for gaming but lately they have been a bit too forward with my sensitive ears,(probably just my ears have gotten more sensitive, thanks headfi) and ive been wondering if a denon downgrade may be more to my liking, only if it would lessen some highs, but like ive said before i cant ever see myself selling until i find a more comfortable can period. comfort is super important to me. but if comfort and grenade explosions is what your after i can safely highly recommend denon cans.
just to add, preference of course, conquers all, even for gaming and the cans u listed must have very different signatures, maybe if people knew your preference and taste they could better help recommend u.
hope this helps and doesn't complicate
cheers