It's hard to compare the two as they never actually had a confrontation one on one. So I only go off of them individually, Andre has more legendary status, as his height and weight was actually a sight to see, due to fact that he was around when wrestling wasn't overexposed like it is now, you didn't have the RAW's, Smackdown's and monthly pay per views every week like you do now. So whenever you saw Andre at WrestleMania that was actually a big deal. The Big Show is the opposite of Andre, he's the closest thing to him in terms of his height and weight but because the WWE is so overexposed, he doesn't feel as special as Andre did in his era. But physically Show can do the things that he couldn't do like drop kicks, elbow drops and can take bumps other than just body slams by Hulk Hogan. So physically The Big Show is better but Andre The Giant has him beat in terms of popularity.