Bluray and Headphones...best option.

[NickMate]

HRight now i have a pair of sennheisers hooked up to the base station of the Turtle Beach PX5. Simply amazing although the lows could be a little better but they give a great surround effect and the vocals are great. Unfortunately the cable or jack is acting up so i need a new set, being only $99 i thought "what can get for better money"
im will to spend $300 max. right now im thinking Beats By Dre studio as they are very comfortable and sounds great...for music. Havnt had the chance to try on films and ive heard they are over bassy. Another requirement is sound isolation. Im going on a long Eurotrip which includes over 80hours of plane travel and 120 hours via bus so i need something to keep alot of the noise out.
The three brands im thinking besides the Monsters:
-Sennheiser
-AKG
-Denon

just need a recommendation of a set and possible first hand feedback.
Much appreciated.