I'm shocked that this is a question. Shanks was able to equal Whitebeard's sword swing when he only had one arm. Shanks is obviously stronger and I believe that Luffy and Shanks will fight in the New World. Not a death match but to decide the Pirate King. Luffy vs. Shanks will be the last fight in One Piece! I'm calling it!
hmmz i think shanks is more powerful than luffy because he is one of younko, but we never won't know because they won't ever fight...this is my thinking
At Present, I would say Shanks!!!
But both of them have 3 kinds of haki and we should not forget that luffy has devil fruit powers where as shanks has only one arm(though he maybe skilled with sword).
I don't think that we have enough information to determine this. We haven't seen very much of Shanks' fighting ability. However, Shanks is one of the Yonkou, has had a lot of time to train with Haki. He has also demonstrated immense strength. I'd assume that he's the stronger, although I can't be sure.
ha.ha.. that's a weird question my friend. Now, Of course shanks, he early become a pirate and one of Yonkou, Luffy? he's one of eleven supernova, not equal to Yonkou. But we don't know what the ending of One Piece, maybe in the last, Luffy as strong as Roger
This is a very hard question to answer. I believe that Shanks is incredibly strong and probably quite a lot stronger than Luffy. However, if they ever get to fight each other, I'd say that their fight could very well end up being almost even on both of their parts, simply because of how versatile and innovative Luffy is, with his attacks and with the way he fights. Either way, it would be an interesting fight.