I have done a ton of searching for WoW related websites and have yet to come up with a quality Item Comparison or Set comparison website, Sure there are spread sheets that make changes to your gear etc but the ability to compare Item A to Item B with the differences noted is what I'm really looking for.

If anyone has come across a site that does by all mean please post the address if not I think I'm going to take on this task and get the website created myself.

http://www.lootzor.com is nice if you go by a weighted stat system (AEP and the like).

For example (Feral Druid List): http://www.lootzor.com/index.php?c=1...9hedu1.75heeu1

If you know the Values to put in you could customize for yourself, not to sure what you want to compare as a Paladin.

One of the biggest with Ret is the difference between T4/T5 vs Arena gear without manually comparing every piece of gear as well I know when I MT'd I would have enjoy'd a site that gave me the ability to compare 2 pieces of gear without being in the game like while sitting at work.

There is an addon called Pawn that you can configure with what values you want to assign to each stat, this will then display in the tooltip in the game and allow you to quickly compare.