This will be a fairly long comment so for the sake of saving everybody the time, my favorite is Uncharted 2.

If I rank the games objectively it looks like this:

1. Uncharted 4

2. Uncharted: The Lost Legacy

3. Uncharted 3

4. Uncharted 2

5. Uncharted 1

6. Uncharted: Golden Abyss

Now subjectively:

1. Uncharted 2 - I don't know what it was, whether it was the timing and where I was as a gamer at that point in my life (enjoying the fact that games were becoming more story heavy and Naughty Dog was at the forefront of leading that charge with the Uncharted games) or just the fact it's a really good that still holds up well, but for me, this game is always going to hold a special place. It's my favorite PS3 exclusive of all-time, one of my top 20 favorite games ever and in my top 3 from last gen with GTA V and The Last of Us. I thought for the time it came out, it was one of those games that did nearly everything well. Fun platforming, fun gunplay and great set piece after great set piece all backed with an awesome story and cast of characters. It was everything a sequel should be improving on the first game in every aspect and was the easy choice for Game of the Year 2009.

2. Uncharted: The Lost Legacy - I believe the review on this website described TLL as a 'greatest hits of Uncharted' and that's about as spot-on a description as one can get. It has my favorite set pieces after Uncharted 2 and provided a lot of action I felt was missing from Uncharted 4. The gameplay is built off Uncharted 4 so it's better than ever and The Western Ghats, while not the typical Uncharted action sequence I love, provides my favorite easy-going chapter in the entire franchise. Chloe has been my favorite character since the final chapters of Uncharted 2 so to learn more about her and get to see her in the lead role was nice and credit to Naughty Dog, it took on some criticism of Nadine, fleshed out the character and made her extremely humanized and likeable to the point where if Uncharted does continue I hope she's a new mainstay. If not for Yakuza Zero, it'd be my favorite PS4 game this year and that says a lot considering all the great games released and the fact that TLL started as nothing more than DLC.

3. Uncharted 4 - While not as action packed as I would've liked I think the tone of the game was fitting. We get one final trip with Nate and Sully (who right from the very first game became two of my favorite characters in any form of entertainment media) and fitting closure to Nate and Elena's story. The background pirate story was very entertaining and the platforming and gunplay were improved tenfold. My only regret was the lack of those wild set pieces because the action sequences that were there were an absolute blast.

4. Uncharted 1 - The game that started it all. Even for its time the gameplay was far from perfect, and I hated the jet ski sequence near the end, but it wasn't so bad to make me put the controller down and I'm glad I didn't because the characters, for where gaming was at in 2007, were some of the most human I could remember and they carried things through. The playful banter, the crazy twists and turns that brought them all closer together at the end. It was a great ride and one of the games that showed how the industry was progressing greatly in the story and voice acting department.

5. Uncharted: Golden Abyss - Not much to say here. It was a game I bought the Vita for and proved Uncharted could work on a portable system. It wasn't as refined as its console brethren in the gameplay department but for a portable adventure it worked well, even with some of the tacked on elements to make use of the Vita's back touchscreen. I also did enjoy the story and the villains in this one.

6. Uncharted 3 - Maybe it's a bit unfair but this game seriously disappointed me back in 2011. Bad? Absolutely not but there was just something 'off' about it from the start. To begin with, the aiming was horrible prior to the patch to bring it closer to Uncharted 2 (basically an admission that the devs messed that part up) and that detracted from the experience. The story also just didn't click with me and I wasn't digging the set pieces like I had in the previous game. As time has gone on, I look back at this game more fondly. While I was disappointed at the time, I now play it and have a lot of fun but it's one of those times where the prior entry was so good there was just no way the follow up could live up to the hype. That's what this game fell victim to. Still one of the better action games for its time and fun to be had today, years detached from its original release.