Both games depend on story and Naughty Dogs only competition in that department is Rockstar Games. Hell..even Infinite Warfare stood to benefit from hiring former Naughty Dog writers. Tomb Raider, while being a good secondary game to Uncharted lacks the grace of what makes Uncharted...well..Uncharted. Tomb Raiders storyline is very generic and provides few twists. In Uncharted you don't feel like you're as overpowered with weaponry as you are in Tomb Raider as well. I played both games on hard or worse and trust me...Uncharted 4 was much harder. You feel more athletic as Nathan, but you feel less overpowered than Lara. It gives you more motivation to want to live.
Uncharteds story has layers and depth and the secondary characters. Tomb Raider is and will always be the Lara show until they give her a partner who can truly watch her back, which makes no sense to me the way her character has been built.