GMed multiple types of Fantasy Games, Super Heroes, Angels and Demons I prefer Role over Roll but unlike White Wolf games there is no Destiny. The Chosen (Players) interact then the World will reflect it.
There are more games out there than AD&D, they are more realistic and allow unlimited customization. But for Virtual Table Top AD&D is the simplest and less complex when it comes to combat. I have played with many types of systems, enjoyed some real complex especially the magic systems.... so really creative stuff out there. I get people don't like the AD&D Magic System, I have toyed with going to a mana point system, it works.. over powers at low levels a little bit ... but mages have always been so down played in AD&D so maybe that is good. Anyway toyed with it, keeping the base of AD&D magic.