I went Thief.

I first enjoyed Thief in XI, and I think I got it to around 45 ish before the party invites became so non-existent that it sort of faded away for me. It wasn't until Abyssea that I was able to get it to whatever the cap was when I played before (I think 80?)

Even if it was strenuous at times, I loved the social aspect of having to coordinate with your tank and first voke for the SA/TA. Sure plenty of people never got the idea and it got easier whenever you learned assassin, but it was just good fun landing the huge damage hits, being a very able puller, debuffing with bolts and knowing that you were leveling a job that had some fantastic self-sustainability down the road that was always going to be a great asset to provide Treasure Hunter.

Samurai would be my second pick, because almost everything I just said applies (minus very good sustainability). SAM was still a fantastic "party role" that forced you to socialize and have some fantastic fun coordinating WS's to result in fantastic results when people actually listened.

I don't feel like there is anything quite like that currently in XIV. I feel that party mechanics are rather dull and uneventful. Then again, I can only think of 2 party spots ever, and that makes me sad, because that's pathetic and everyone who enjoyed XI knows it. Part of the charm was always having to go to some new location to level up, some dangerous destination in some distant part of the game to gain the next few levels. Not "Go here to gain 1/5th of your entire levels".

I really hope we get great job variety and there are lots of interesting places to party up at in ARR.