I settled on Rareservers based on what I've read on various review sites and hosting discussion boards.
I need to have a lot of streaming multimedia, and it's no problem with them! Lots of users logging in, lots of e-mail accounts. It's great!
Pricing is great, over all policy is amazing, support is always available and are excellent help.
I host a set of my web sites at their US dedicated server - uptime has been perfect.
Rareservers highly recommended from dedicated server owner.