>judging by how much bass there is in the headphone
You want a balanced sound for music listening. That's not too strong bass or highs. The music itself should determine characteristics like strong bass, not your headphones :V
pic related
I have these, and they're pretty good for what they're worth.
sennheisers aren't that good. It's the same bose phenomena really. Overpriced products for THAT brand name. the build quality is awful.
Anyway, I like good quality audio but I don't discriminate that much. ATH M50s, FLAC, MPD for software playback. I also have a moderately good vinyl set up, but I forgot my specs right now :V