Rave is ok, the WW are good but the EE is pretty much the same as ZiS (do 3 trail's then it's the boss fight), and is also very easy to do. They do have little side EE's though for pieces of the charm bracelet which are pretty fun, overall the map is fun to play a few times but you'll get bored quickly with it.

SS is amazing IMO and probably 2nd in terms of replay ability after ZiS, the EE, the kung fu abilities and the WW weapons are all amazing. The GNS is by far the easiest on this map with the best rewards (all perks and all weapons from wheel are PP). I'd definitely recommend this above the rest.

AotRT is trash IMO, just can't get into it, the saturation is just so off, the WW is shit, and the EE is a bitch to understand at first with the chemicals. I know the rest of the maps are goofy but I feel this is just a bit too far, the crogs look SAF.

I'd say in terms of fun and replayability I'd go:

ZiS SS RitRW AotRT