Best site for loans.

[Tasty]

I am considering getting an auto loan for a used vehicle, and I am wondering what the best internet site is for checking out my options. Anybody ever used any of the big ones to check for loans? Lending Tree, etc. Let me know. I would like to get several options while only having to take one credit hit. I don't want to drop my score investigating loans. What a stupid concept anyway, but that's another topic.

[Tasty]

Wow, I thought for sure I would get some feedback from people on this subject. (bump in disguise)

[SpoiledMan]

Have you tried or do you have access to a credit union? My sister also had much better luck using the dealer's financing options as sometime they have incentives(yes, even on used) that will benefit you. She had been approved for a loan(by a shark I think) before we went to the dealer and the dealer did about 4% better.