Golden Lotus is the big UGHHHHHHHHHHHHH to me. I didn't mind the Order of the Cloud Serpent ones at all, and enjoyed that rep. But doing 3 separate hubs to gain a minimal amount of rep... yuck.
I tried all of them a few times, and I found Klaxxi the most boring for the dailies that I was able to access - and the quests were dreadful.
The rest that I tried and the rest of the quests (aside from a bit in Kun'lai) were spectacular - the rep is much better from Cataclysm.
The only thing I miss is tabards. But look on the bright side - it's not a 1 daily per day for each rep zone like in Cata (except for Therazane, that had a few, the rest didn't.), and we have daily quest hubs which help a lot.
THOUGH - I am kinda pissed off because I wanted to do dailies and finish some of my quests and stuff, I've got most done in Dread Wastes, just half a chain or so left to go, but with the faction change and server change, my toon bugged out and despite having the completed zone quest achievements, I can't access Pandaria by portal, so yeah. I've gotta wait on my ticket for that. :/