HD598

I have no prior experience with any of these headphones, I just know that both of them are amazing for Music etc. I just want to know some opinions for the gaming side. PS. DT990 Pro is the 250Ohm version

A little info about myself: I listen to hip hop-jazz type of musics, and I don't want too much bass, just want it to be in between. I am an audiophile, and love to get the highest quality of music out of my headphones. Now, in your opinion, do you think it'd be better for me to get the DT990 +...