What type of terrain do you run? Mud? Rock?
If you run mud you will want the strongest winch you can afford. The heavy winches are usually slow, but in the mud alot of times it doesn't matter. Max pull is the biggest thing. Warn 12K, etc.
In the rocks line speed can be a very good thing if you are about to roll over and die. That is when a faster winch is a good thing. faster usually mean less pulling power though. 8274, Warn 9500, etc are fast.
From everything I have heard about the 8274 (the older ones) is that they are rated at 8000lbs but really pull much harder then most other 8000lb winches.
I have a Warn 12K on the front of my truck. It is SLOW, but it pulls really hard. Eli (Weisel) summed it up well on the last run. You don't know if the winch is pulling, has stalled, or if the front of your truck is about to rip off.
I have seen the Warn 9500's in action. They are a damn fine winch. I have seen the 9500HS and it is almost to fast. I saw another 9500 Warn (don't remember exactly which model) on FWP's truck and it pulled like a beast too.
Fred's (FWP) winch was hooked to a truck stuck in the mud, and we strapped Matt's (az-k5) truck up to Fred's (both 1 ton, 37-38" tires, etc) and the Warn 9500 was dragging Matt & Freds trucks into the mud with there brakes locked up.
Harley
Harley