Tiger and it's not even close, and that's coming from me who, while I admire his enormous talent and cultural impact don't consider myself a fan, nor do I "get" all the iconic adulation at times, but it's undeniable.
And I'll give 100%,definitive proof, which I'm sure could be confirmed by numerous scientific, sociological, cultural and statistical studies and opinions based on the following:
A few years back Tiger was playing in a tournament, and close enough to the Sunday lead that his every move was going to be shown on t.v. live/non-stop, not to mention by the thousands lining every tee box, fairway, green and pathway on the course. And you could tell by the close-ups of his face (that's another thing: he's not just shown on t.v. in profile, it's close-in head shots much of the way) that something was bothering him. He then started twisting at the waist, lifting/spreading his knees apart, etc. to where it became obvious: the guy's got a wedgie! So the wife an I are watching him not focusing on his next shot, but instead in his brilliant, creative mind trying to figure out "how can I get my drawers out of my ass with half the world watching"? But of course you know that Tiger, who is the most creative, magical, clutch "in the moment" person of our times, would be able to pull it off: he hits a long iron, and immediately after as the gallery rushes past him which provides him a small window where he's not 100% in everybody's focus, he does a little hop step/ scissors kick which presumably removed said undergarment from afore-mentioned Gluteus Maximus.
Contrast that with Messi and Ronaldo: I would guess that during a match they can be observed scratching, adjusting, pulling, etc. numerous times, and not once does it end up as a youtube video, meme or tabloid cover.....so there you have it; my last comment on the subject.