My favourite is clearcut, with Sandblasted a close second.
Never had a chance to try frostbite, as it seems the servers that does have players on dont have that map in the list.
Also I recently installed 3 new user created maps, Pallisades, Desolation and Paradise, which I would like a chance to try out as well. Problem is that the servers that do run these maps seems to be deserted all the time.
Inferno and Marshes are the 2 maps I prefer to not play on.
At the beginning of a match I prefer to run in a tank, and these 2 maps are not very tank friendly.
Inferno its far to easy to suddnely have the ground dissapear underneath you as you suddenly wihtout warning come to the end of it and run into a lavaflow and get stuck, and alot of the times forcing you to abandon the tank and either suicide to get money for a new one or run around as a BA and try to get money for one.
Marshes are fine as long as you run a hovertank, but the tracked ones you end up driving underwater with no idea whatsoever where youre going.
Also, its far to easy both with tanks and mechs to gt stun in all the trees around there.
Last time I checked it would take more than a mere tree to stop a 50 ton mech going at 70 KPH.