I don't know that it's "lucky" per se, but it was once, and therefore is now my favorite hand. 7-5 off. Reason is because in the first large MTT I placed in, I was playing it from the BB, flopped the boat, and had quads by the river. Took a ton of chips with that hand and then went on to place 4th in the tourney. Now I play it every time I see it, assuming I can get in cheap.
I did play it to a raise once during a 2/4 limit game at Harrah's in Tahoe...guy to my right raised, saying he had his favorite hand. I called, telling him I had MY favorite hand. Hit a pair off the flop and then two pair on the turn. Ended up taking in a $100+ pot.