Should i get the ATH-M50 or HD598 headphones?

i am currently stuck between two headphones the ath-m50 and the hd598, money is not the problem . I want the headphones to have good bass, and be very good for movies, and songs(rap/hip hop). I hear the hd598 might have better sound quality but it also is very loud very people around you. And the ath-m50 doesnt let sound out but it is worse quality sounding. I am more concerned about sound quality but i dont want it to be so loud that it bothers people around me. so i am unsure of what to buy please help me.