Vortex is my favorite - its just an awesome looking map.  U-Turn is fun as well and didn't like Intersection at first but warming up to it.

Spawns could maybe stand a bit of tweaking.

I think they all suck, but that's just me.

Honestly?  I find the face-off maps to be awful. Awful spawns, mostly people camping in buildings/corners; spamming grenades/noobtubes/rpgs.  It was a good idea, but they just aren't very good (at least in my opinion).

Intersection, there's too much spawn trapping in U-Turn and the spawns can be very horrible in Vortex such as when I kill 2 people which then spawn in the corner I killed them and proceeded to kill them a second time. I killed one of them a third time and then proceeded to move to another location in case the third enemy decided to hunt my red dot. He respawned in the same corner for a third time and managed to kill me while his partner sat back in case I killed him a fourth time and escaped. The odd thing is they wern't using tac inserts.

Intersection has tactical combat on the streets and buildings and the spawns don't dump you into a spawn trap.

for me:

1. intersection - looks not the best, but i always get good scores on this map.

2. vortex - looks good, but awfull spawns.

3. u-turn - just an awful map. i hate the fact that i have to climb to much. also spawns are bad + i get stuck to mutch.