Here's my innovative idea for a realistic FPS; use multiple hitboxes per model and add a realisitic trauma model which saps vitality from all hitboxes according to real-world hemmorhage behaviours. Of course, there's no HUD and no "hit point" counter so you have to guess how bad you're hit from visual cues and the level of game-induced lag between control input and reaction. No health packs; first aid only limits the overall vitality loss due to bleeding, and takes 1-5 minutes of timed-repetitive motion/button combinations to activate. Sufficiently damaging strikes will lead to temporary loss of consciousness, mapped out in real time, and hit boxes whose vitality is reduced to zero disable the appropriate body-part for the remainder of the game.
And immediately upon character death the game uninstalls itself and renders the product key invalid.
(Point being, there is such a thing as too much "realism" in games.)
As to RPGs, well, not everybody is looking for the same experience. Good thing we've got all those different styles so folks can pick the ones that suit their tastes better; it's just a shame that some invest so much of their compensatio... er, ego into how "superior" their choice is to everyone else's.
-- Steve