Let me jump in on this quick as we seem to be having a growing number of these posts.
First, we played Golden Dunk on the one smaller server many many years ago, fun for the first couple minutes of the first time played, then just annoying afterwards.
Baserace has always had a max entitys issue which causes it to lock up and crash on large servers. Not sure if anyone has ever remade it to fix this but not to my knowledge.
I dont normally read through all the posts like these because I just dont have the time to sort out everyones opinions and thoughts, thus the simple system we have in place for getting rid of maps you dont like and getting ones people do onboard.
First, nominate the map you dislike for whichever server under that servers forums and the thread, "I Hate This Map" make sure to follow the guidelines for doing so.
Then simply make your suggestion for a new map using this guidelines:
http://www.bbaservers.com/ftopict-31.html with all info, screen shots and links available for it and as much info you can. Posts with maps simply saying "this map looks cool" really wont be considered, take the time to research it fully and then you have a chance.
Thanks