Depends on your play style.
Karkand is pretty diverse but is mostly open warfare with an emphasis on vehicles.
Close Quarters is...well, up close and personal.
Armored Kill is for vehicular combat (and some damn big maps)
Aftermath is similar to Close Quarters, but it has an emphasis on the new game modes and the crossbow.
End Game is hard to describe, but it adds a dropship to some new maps and introduces more agile vehicles (dirt bikes and light AA).
I bought Premium for my console and don't regret it much, except NOW I have to get it for PC...or just get BF4.
Im going to assume rest of them (Karkand aside - i enjoyed it) are multiplayer as well?.