I had a Velocity server at first. I thought it was pretty good, but just one thing that kept pissing my team off...NO REG.
So, then i go witha unitedfrag. They gave me a AMD server, and they said that their AMD was horrible. I said when can you get a new machine, and he said in a week. Ummm....no...sorry.
So then i decided to either go with Hi-def or NFo. Money wasn't a issue. Hi-def didn't have SourceTV, 500 fps, and as good as support.
I've had my NFo for a week now (Hyper Accelerated / High CPU Priority) and i love it!