You're wrong if you say anything other than 2.

Uncharted 3 gameplay with Uncharted 2 story and plot structure using the last of us story telling elements and graphics.

Havent played Golden Abyss, but I doubt its better than Uncharted 2.

I finally played Uncharted 3.I can honestly say that:
Uncharted 2- Has the better overall story and pacing.
Uncharted 3- Has the best gameplay IMO.

Singeplayer - Uncharted 3
Multiplayer - Uncharted 2
Both together - Uncharted 2

Uncharted 2 Among Thieves.

I really liked Drake's Fortune (perhaps my favorite campaign). Among Thieves was great too, and the multiplayer was fantastic. I pick 2 for more value.

I loved them all to be honest.
Drake's fortune is great because it really gave you a sense of what to come.
Among thieves was amazing for not just the graphics but the improved gun controls, as well as the awesome story and set pieces.
Drake's deception gave us beautiful graphics and a great story.
Golden abyss also showed us that a story driven, third person shooter can be done on a handheld.
I know the graphics weren't amazing and the story wasn't all that but all in all i found it to be a fun addictive game that I couldn't put down, I loved the way it utilised the vita.
Just can't wait for Uncharted 4, that's going to be next level, I wouldn't mind if naughty dog gave us a HD remake of all three of the main games as well as the vita version, they did it with assassin's creed, so I don't see why not.
I know plenty of people that would buy that in one neat bundle with a ps4 before the release of uncharted 4.

Really liked all of them, 1 made the biggest wow on me. 2 was awesome 3 was fun.