I like Bootleg (best of all), Dome, Hardhat, Carbon, and Outpost.

Whiel I don't hate the maps, I don't have a single one I favour. They are all very average.

Resistance, interchange, and dome get my votes. 

I'm a little upset in the lack of smaller maps.  Older maps like scrap yard and crash were great. 

Most of the maps have nothing that stand out about them.  Not very memorable

DOME

Seatown, Hardhat, Village and Underground.

Thx for the tread OP. tough question as I like them all for differ reasons. The best for me is villiage. I play almost 100% Dom so villiage offers new tight fights for the A and C flags. With good clear sight lines to B and flanking routes. I like this map structure. The river bed is also a fantastic  but as yet under used way to traverse to map to intercept flanker.