LOL. I was just visiting ebas (Eric Basaldua)'s deviantart page and this is what he writes on the topic of same faces:
for my regular watchers...u will remember how much i hate drawing faces...this one was an exception, i had my mojo in full gear here...i purposely wanted to try something different...not easy to do.....most layman's will say..."oh that guy sucks cause he draws the same faces all the time" idiots!! in our industry u need to establish and maintain a style so that its recognizable to the viewers in hopes to gain a fanfollowing.....most ppl say that they can spot an eBas face a mile away...i tell them, i am very good looking and get that a lot...he... no seriously, they tell me its the eyes or lips and such...this time i wanted to play with features more...