My all-time favorite maps in no particular order in Brink so far are:
Container City (As Security)
Security Tower (As either Security or Resistance)
Labs (As either S or R)
Aquarium
What I like about Container City: I love the flow of the map and feeling you get as you progress through the level. There is a high sense of drama at each point, especially at the first objective where you know that any mistake in tactics can prove devastating. I like that.
Security Tower is still the pinnacle of Brink for me. The mighty Security Tower. The escort portions are my favorite objective by far in Brink, so its no coincidence that three escort maps show up on my list! This map has had many of the most epic struggles that I’ve faced in Brink. Large open areas on the street level, and multiple levels to climb. Tons of flank opportunities. Another upward struggle. Winning at the last moment when all seemed lost, is a totally awesome feeling.
Labs. A great map. This map really has a great beauty and visuals. WIth the multiple locations one can plant, it makes both attacking and defending hectic and intense. The second portion with the Engineering fix is usually an Epic battle. I’ve been beat by really good teams on this that map that lock down the room or constantly push towards the repair with relentless aggression. I’ve been on the winning side a few times when we were the ones that locked down the room. The last part is like the last part of CC: a mad-dash to freedom.
Aquarium. Love the upper-ward struggle and tug-a-war feel, almost like you’re climbing up towards an ever increasing difficulty level. Reminds me of another mode I play in another game where the enemies just keep spawning and getting progressively more difficult or like the frantic intensity of No Fighting In The War Room on Vet. You literally get the agent to daylight after freeing him from the darkness of his cell. Sometimes it can be about small victories. Get him as far as you can. Other times, you can snatch victory from the jaws of defeat. I think that’s cool.
I prefer attacking and being the aggressor the most out of all maps. 


