Review of the top maps (I decided to post it here rather than there: http://aloha.pk/index.php?topic=2327.0)
So, this is my rating of the maps:
The maps that should remain: 
generator2
Pros:
+A lot of action in this map
+Rifle and SMG usefulness is mostly balanced
Cons:
-It’s sometimes difficult to do anything in this map if opponent has more skilled players
minideckarena
Pros:
+Interesting layout (of course based on the UT map)
+Different strategies can be used to win
Cons:
-Campers in spawn
-Seems to be slightly unbalanced
indiaarena
Pros:
+Action map, shotgun can be powerful here
+Lots of routes
Cons:
-The inside storage is often used to camp, also climbing the wall is used for camping
dedust2arena
Pros:
+Challenging if you decide to rush
+Lots of paths
Cons:
-Rounds can last very long time, the map is slightly big
csitaly
Pros:
+Interesting layout, the tall buildings somehow provide a new form of entertainment
+The corridor can be challenging path to take, as many soldiers usually die in there
Cons:
-Camping places around every corner
castlewars
Pros:
+Again a different layout from other maps
+Balanced in my opinion
Cons:
-Secret passages aren’t that useful
-Houses near spawns are used to camp
abandonedstronghold
Pros:
+Can be really exciting
+Fast rounds
Cons:
-The courtyard is deadly place unless you choose to jump over the wall
abordage
Pros:
+Again, interesting layout
+Pretty action packed map
Cons:
-Even if it does not seems like, the map is unbalanced because one deck is more protected by the hanging net
avseafort
Pros:
+Small but exciting
+Interesting combat in there, different from other maps
Aspects:
*SMG and shotgun seem to have greater lethal force, although playing this for rifle is also possible
Cons:
-Possibility to throw grenades in enemy spawn (the map was modified due to this fact)
avsmallfortress
Pros:
+Lots of paths
+Not so easy to camp here unless you wait in spawn
Cons:
-The layout is a bit confusing
-Rounds can last for long time
planeassault
Pros:
+Different strategies can be used to win
+Weapon balance
Cons:
-Occasionally happens that a player jumps into airplane turbine and camps there forever
prisonbreak
Pros:
+Really nice idea with the wall route
+Rifles are most powerful so SMG users mostly have no chance
Cons
-Long rounds if people decide to camp - camping places are: in both spawns, on the towers, on roof of the Green Mile, in the church and all other buildings
townarena
Pros:
+Nice layout
+Duels in the cornfield
Cons:
*I didn’t play it enough times to see any deficiencies
volcano
Pros:
+Tricky parkour
+I just like the appearance of this map
Cons:
-Due to lags you can get randomly “fell too far” deaths
Maps I don’t like (I would take them out of the top maps): 
alcatrazarena
Pros:
+If you like to walk up the stairs, then this map is for you
Cons:
-Map is too big, snipers have almost an unfair advantage
-So many stairs and top floors
-I don’t know why are there so many tweaks on the ground floor
avstorage
Pros:
+Map can be exciting sometimes
Cons:
-So many places to play hide and seek
-Blue spawn is the paradise of campers
casinoarena
Pros:
+Can turn into a slaughterhouse if blue decide to assault the balcony
Cons:
-Weird paths, confusing layout
chinatown
Aspects:
*The central building attracts lots of campers
Cons:
-Should not be used as arena map, too long rounds
neotokyo
Pros:
+Useful as training ground for snipers
Aspects:
*The map is more fancy than entertaining
Cons:
-It’s not so exciting gameplay in there
officewars
Pros:
+Blue team has simple access to roof, they can go camp and waste some time there
Cons:
-So many floors (why?!)
-Ultimate camper combat - It’s a game of nerves, it can take a lot of time before one of the teams decides to rush it
penthousearena
Pros:
+Action combat
+Disco room
+People can decide to suicide jump from window if the game is too boring (better than do /kill)
Cons:
-It takes too much time to find all campers
-So many routes and rooms…
Thats all, for the other maps i have no specific critique