I just beat the Lost Legacy. It, honestly, felt a little weak. I enjoyed it still, though. The first area in the city should have been used more, as it's one of my favorite in the series. It was disappointing to see the rest of the game was all jungle. Not a big fan of jungles all the time. The set pieces felt a little like a greatest hits compilation. It had it's benefits, as we got to see how far we've moved, since U2, but was also a little disappointing. They were still fun, though. Not a fan of the tiny openworld they tried. I play enough openworld games, I want this to be a linear experience. The little slice of openworld felt underwhelming, given all the other games that do it better. Wide-linear is a better approach.
I felt like Cloe, Nadine, and Sam were never this sympathetic, in a bad way, and Nathan Drake attributes were forced on them. They are all super well written, until they are forced into the hero role. They should have kept it as a fun adventure, with fortune hunters, without forcing some hero elements. They could have done a hero type thing, I suppose, but it didn't feel natural to me, the way they did it. In the end, I came away with liking Nathan Drake as a main protagonist a lot more. Cloe, Nadine, and Sam have more potential together than Sam and Nathan, but, I like Sam and Nathan's relationship more because they pulled it off better.
The gameplay really displayed some weaknesses, this time around. I actually felt like the other Uncharted games were funner, as they really allowed for a run and gun type of approach. U4, less so, but the scenarios kept it interesting, and, every once in awhile, it shined bright. Not to mention, it was actually rather light on combat, as a whole (as both a positive and a negative).
Overall, this was missing a bit of something. I like the story, characters, and gameplay, but it was all uneven, for the reasons listed above. I think U4 was better in almost all areas, except LL ability to string together story with Gameplay. U4's biggest problem was that it had too may slow story moments, that broke up the pace. LL didn't have this problem. I would give this a 7.5 or low 8, as opposed to a solid 9 I would give U4.
U2 is easily the best in the series, IMO.