I heard Motley Crue's version 1st, then U2's. Then finally, years later a heard The Beatles. And as the saying goes, The Beatles version BLOWS the other two out of the water. The thing that's so funny is that Motley Crue fancied themselves a hard rock band, where The Beatles were pop (more or less). Well, The Beatles version is heavier, darker, and it has the great "I've got blisters on my fingers!!" line to boot. Listening to it makes me kind of understand why Charles Manson dug the song. Harrison's guitar has the sound of a WWII bomber flying right over your head. Awesome, awesome, awesome.
As for U2's version, they aren't the self-proclaimed "World's Worst Cover Band" for nothing. They have done some good covers, but this is not one of them.