I don't mind fantasy stereotypes, but neither will I use them every time. I did have elves in Morcalia, though they weren't automatically good archers or all noble, and I had quite a few spins on things. I did have a lot of creatures based off Greek mythology, though again, with my own certain spin.
I'm rather meticulous to myself in the details of my worlds and its characters. Some of my old characters were very sexual, violent, aggressive types with no care or respect in the world for law and order. Yeah, okay, there might be a lot of creatures and/or characters like that in fantasy time and time again, but I've noticed that no author I've come across had bothered with the detail of explaining why they were that way.
The way I had it set up was that most of them were half-breeds: Half-elves, characters with dragon/elf or dragon/human, demon/elf, demon/human, demon/divine backgrounds, and my explanation was that, much like in clinical depression, there were hormonal imbalances in these individuals causing them to act in such destructive, impulsive manners. The conclusion of Morcalian scholars and physicians were that the genetic markups of certain half breeds were incompatible between species and the resulting hormonal conflicts would overload neural receptors in the brain, causing symptoms similar to that of schizophrenia or aggravated drug use; auditory and visual hallucinations, uncontrollable sex drive, a tendency towards self-destruction via drugs or mutilation, and a tendency towards violence to others.
Also, much in the way of the horse/donkey phenomena, most Morcalian half-breeds were sterile.
I think this is going to be an aspect I take on to the new world.
After that mouthful, I think it shows that with certain careful planning, things can go a lot deeper under the surface of a character or a world than is often portrayed.