I voted Urien.
Kuroda is the top Q player in the world. There is no denying it. He does all sorts of wild C&DB combos like it’s nobody’s business. He builds meter and throws out SAI and SAII hits with seemingly zero effort. He makes people look stupid with his Q. But that being said, at every SBO, he runs into a wall eventually. There are only so many times he can run into Yun, Chun, Ken, or Makoto and break through. Q is just not built to take down the ‘big four’ over the long haul in a tournament. It’s really only a matter of time before Momochi or KO or someone rocking a top character beats Kuroda’s Q 2-0 in convincing fashion.
Third Strike is not balanced. As the game has evolved over the years it has revealed itself to be more and more imbalanced unfortunately. Look at the EVO results and the winning SBO teams. Top tier absolutely dominates. In order to win SBO you pretty much have to stack your team with ‘big four’ characters. Even mid tier characters are a liability at SBO. That is the reality of competitive 3S. Low tier characters have almost zero chance of taking the grand finals. It is a miracle how Kuroda has taken Q so far.
Kuroda’s Urien is hyped up to be as good as RX’s from what I’ve heard. And we all know how incredibly sick Kuroda’s defense is. If Kuroda really is that good with Urien, and there’s no reason to doubt him really, then I’d estimate him taking Urien a greater distance than he would with Q at SBO. But winning SBO with Q? I just don’t see it.