Zero, I have taken the time to open every GG map in a private server (my memory is terrible). I compiled a list of maps that are never played, disliked, and maps of multiple versions as to create room for new maps. There is way too much clutter on the nomination and map list. I can guarantee you that all of these maps will not be missed. Please, consider removing all of these maps:
maps to remove
aim_ag_texture_agc
aim_bc_texture7
dm_hangumhigh_fix
gg_wmd_temporal (terrible map)
aim_ag_texture_futuretown_v2
ggt_01_publicplaytest_v2 (never played)
gg_dev_vectron
dot_nighthawk_aztec
aim_xg_cg_texture
geek_mspacman
gg_rustndust_high
gg_bkh_majestic_v3
gg_xinox
gg_liek_z0mg_texture
gg_isolated_fightyard
gg_temple_arena
gg_space_dream
gg_marblecomplex_v2
gg_wmd_outpost_v2
gg_texture_spirals_small
gg_simpsons_train
gg_egypt
sath_speedcastle
gg_alphabet_x
gg_dust2_x
gg_killersconnection
gg_mad_grua_v2 (we already have mad_grua which is the superior version)
gg_oni_cargo_x2
gg_cl_indoor_rawk_Concrete
gg_orange_indoor_rawk_x2 (duplicate version of the original whichis superior)
gg_ultimate_x (has a bomb and is too big for GG)
gg_blue_arena_aus (bigger version of blue arena and not needed or played)
gg_ds_lego_blokheads1 (way too small..allows most people to shoot right from spawn point)
gg_cs_lego_blokheads2 (same as first but with hallway around spawn, still doesn't change anything).
gg_ds_mini_arena (same as gg_ds_arena but smaller. Most playes prefer the larger version)
gg_octasky
gg_tdr_outpost (too small..about as small as blokheads)
de_alivemetal
gg_foolscontra_v1
gg_tater_advanced
gg_zone32n.bsp
rumble_pit
gg_blazed_v2_evilhomer
gg_optima
gg_player_clip
gg_red_cybergoth_v1 (unfinshed)
gg_textured_lookout_DBZ_v2
ggbunkerzone
aim_skylands
gg_dust_complex
gg_flyingdutchman
gg_summercraft_beta
gg_texture_adventure_town
gg_tokyo_subway
gg_boxxy2 (doesn't work)
gg_churches_remake (we dont play this version...im always asked to switch to original)