Which faction would you want to see more of in your games? (MP)

Sort of an anti-newplayer recommendation: is there a faction you see across from you and think, "oh good, I like playing against these guys"; or even just "oh, I haven't seen someone play this faction in a while"...?

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Very much enjoying the game and want to play some MP down the road, but have a finite amount of time to spend obsessing. I sort of pride myself on Finding a Way with under-played stuff just by knowing it really well and working out some nice tricks.

I don't mind losing as long as I can put up an entertaining fight. But I don't want to go off into single-player and polish up a faction just to make people groan. Or more... as I said above, I'd prefer for people to be happy to see it.

My vague look around at the moment suggests maybe water-based or eat-your-peasants....?