Even though I didn't play UCLL I did play UC 1-4 so I gave my vote to SotTR by default. I like the Tomb Raider reboot about 1000 times more than Uncharted. I wasn't a fan of the old TRs but the reboot is one of my favorite series and Shadow is my favorite of the 3.
I never played any Uncharted games before I bought a PS 4 but I'd seen many comments how the new TR is a copy of UC so I was expecting something similar to the new TR. Except for art & graphics UC wasn't comparable to the new TR games and was not at all what I was expecting and hoping for.
To me UC is just a copy of the OLD TR games with better graphics and voice acting. UC consists of shoot, shoot, shoot find some meaningless collectibles, oooh here's a big set piece and now let's watch some cut scenes. I did enjoy UC 1-3 for what they were, Nathan Drake & Sully are a GREAT characters, but for my taste in games they don't vaguely compare to the new TR series. And 4? UC4 was the 2nd most over-rated snooze fest exceeded only by RDR2.