So what's are your preferences? When choosing earphones, for me the only option is the bose IE2, as they're the only ones that I can wear. Others hurt my ears. Problem is, they sound awful and they're very fragile. I've been through 4 pairs (on my 5th) in the last 2 years.
For headphones? Big bass, great mids and crystal clear highs. Comforts a big point too.
Speakers - pretty much the same as headphones. For that reason, Bowers and Wilkins often fit the bill, along with a jbl sub