Okay, chad faced joke aside (which is what I was going for there and couldn't undercut it with =P) I do prefer more simulation based ruleset which sortof demands that at least some basic rules of physics are able to be mapped between reality and the gamestate. Abstractions can exist, and explanations can be provided (like the idea of a potion only being a mouthful/shot in quantity and/or size), but strain of an increasingly divorced rulest from the actual narrative is always a problem and should be avoided, imo.