It's a better quality franchise. Underworld was the only true 7th gen Tomb Raider until the reboot and it wasn't that good. While I like the Tomb Raider franchise, I'm not oblivious to reality. Uncharted took things that Tomb Raider did and did them better. And it had sharper writing.
I think Uncharted 2 and TR Reboot are the best in the genre (with an edge to U2).
I quite enjoyed Underworld, it's nowhere near the original Core's TRs, but it's pretty good TR game. On the other hand, I think Reboot is very average game (bar shooting mechanics) and horrid TR experience.
Hm, I'm getting deja vu right about here - I think we had this conversation before, but don't blame me, I hardly ever miss a chance to shit on Reboot and everything it stands for. ;)