The first site collates prices/deals, where you can filter by location.
They also carry out a quarterly survey as an attempt to gauge customer satisfaction for each provider (http://www.lowendtalk.com/wiki/top-providers).
I've been looking for a VPS recently and found the above 2 sites very useful.
http://www.lowendbox.com/ http://www.lowendtalk.com/
It shouldn't surprise anyone that choosing their VPS provider by price alone can be a bad idea, but I really don't recommend it.
You have to look at the companies with a critical eye but there are well established ones.
Buyvm.net is a no fuss provider and they have been around for a while.
It shouldn't surprise anyone that choosing their VPS provider by price alone can be a bad idea, but I really don't recommend it.