[jacobenchile]

I listen mainly to hard rock, alternative, metal, dubstep and Coldplay. I travel a decent amount, but mostly listen to music for a couple hours before I go to bed (in my dorm room) or in the car. these are the headphones I am looking at right now:

AKG K702 Headphones
AKG Q 701 Quincy Jones Signature Reference-Class​ Premium Headphones, White
Grado Prestige Series SR325is Headphones
Beyer Dynamic DT 990 Premium 600 OHM Headphones
AKG K550 Closed-Back Reference Class Headphones (Black) 
V-MODA Crossfade M-100 Over-Ear Noise-Isolating​ Metal Headphone (Shadow)
Sony MDR1R Premium Over The Head Headphone, Black
Ultrasone PRO 900 S-Logic Surround Sound Professional Headphones - Black
Sennheiser Momentum Over-Ear Headphone

If you have any other suggestions for headphones between 250-300 let me know! Which would be the best of these?

 

[Magick Man]

You'd do better if you asked here:

http://www.head-fi.org/t/529144/recommendations-thread-i-e-dont-start-a-new-thread-ask-for-advice-here-please-read-op

 

[GSARider]

I'd add Amperiors to your list too, I find them great for listening to Swedish House Mafia.

 

[joseph69]

Go with the grado 325i's or if you want a little bit more laid back go with the alessandro MS2i's, wich I currently own , and both of these headphones are amazing!!! especially for the genre's you listen to, just check out some post's on this forum for some opinion's and comparisons.