Of curiosity, as it appears you have made somewhat of a move from rules-heavy (or maybe more accurately, heavily defined, such as AD&D and Mythus), to light and rules-easy (your own D&D game, you speak of, as well as LA).
Did anything in particular bring around this change, or was it always there, and you just offered more detail for those who wanted (enough rope to hang from..)
It is sort of interesting, as I have known many gamers go through seemingly the same phases. First they play the basics, then they add tons of detail, options and "crunch", and eventually many fall back to a "barebones" gaming approach.
Cheers
Ivan