So I went to the mall today and I heard many headphones comparing them to the m50 including:
Beats solos- only bass everything else crap
Beats Studios - bass way too loose, just shakey bass not tight at all the mids are pretty crappy and highs can show some not so shy sibilance
Bower and Wilkins p5 - almost the same sound signature as the m50's and it was rather comfy and nice I liked it a lot.
Klipsch image 1 - great but the bass was too loose
V-moda crossfades - good but were not fun sounding and the mids were not so clear and punctual
Skull candy aviators - bad isolation, but I have heard them before in a quiet environment and the treble was nice clear and very fun and exciting, but very weak bass but still tight bass if you could hear it ^^
Able planet True fidelity - surprisingly sounded great I'm actually considering returning my m50's for these because of the value and sound cancelation, but still the bass was rather loose. Still, it sounded great and was very portable.
Seeing only the p5 sounded better in total and was 200 dollars more, it really makes the m50's look good. Now in specific the aviators sound better treble and mid-wise. The able planets sounded nice with the noise cancelation and in general sounded great.