MERP was the first, by ICE. They later put out a simpler version called LotR Adventure Game.

Then Decipher put out the LotR RPG.

Then Cubicle 7 put out The One Ring.

Which, if any of these, is the best? Maybe none of them? Maybe there's a fan-made LotR-themed game out there that's better?

Or maybe a pre-existing gaming system, like Savage Worlds, is well suited for LotR.

I don't know, but I'd like to hear what you have to say about it.