de_cantina is no good, read my map request thread for feedback on the map.
de_dustinesi is too complicated/big. For those that don't know it, it's a mix of piranesi and dust2, however it's not very well done :/
de_trading had amazing success on the server before, and if people whine about getting between bombsites being a hastle, I'll fix that in one night. It was such a great map.
de_inferno_pro - I have no idea.