Reply to Sennheiser Hd-25 VS Allen & Heath XD-53

Oppinions?
Producing heavy dustep, dnb, and some electro. Also wanna use for regular use and worried about sound from the outside entering, and exiting, if you know what i mean. Don't wanna hear other things, and don't want the people around me to hear my music.

More worried about sound quality for production. Need to be as accurate as possible.