I don't think Aztec should be there, everyone lags on it. Rain just adds more lagg

I agree with above but I think you should set the poll out different so maybe create a poll with all of the maps listed out like this:
de_dust2
de_inferno
de_dust
de_dust2002
de_nuke32
de_kabul_32
de_train32
cs_italy32
de_westwood
de_cpl_mill_32
cs_militia
cs_assault
de_aztec
de_prodigy
Then simply vote.. maybe you can get rid of maps like de_cpl_mill_32, it's not played much nowadays.