Funny how everyone is listing his own host. They proberly missed "quality"
For real quality check out
www.isprime.com simply nr1.
Also very very good
www.natnet.com
www.cavecreek.com
Sextracker hosting
swiftwill hosting
oxeo hosting
and also webair is supposed to be okay
and of course I forgot a few. But please don't go for those one-man show hosting companies.