i played quite an OP game with loki and only ended up with 29 villies. i was mythic, bu pretty early, about 16-17 min. Having said this, i think i had most upgrades for classic and heroic, but the main thing was, i had always kept pressure on my opponent, and made a very large military, so when i attacked him with flaming weps, his smaller army got rolled.
However, generally, you will advance to the classic with 20 villagers already lol, so 10 more and completely stop is suicide. Keep making them, if you run out of villies, and are still alive, you will have masses of resources and can delete some later.
In a long game, look at postgame, 60-80 is generally good. Depending on cev, eggy is fine with 90+ becuase it can merc.
Most villies i ever got in a seirous game is probly 100-110. I remeber a game where was hades, i only had 1 tc and had 100 civilian high :O ! I had alot of towers that game lol.
Roc....rock :P