Been playing my mash-up of 1e/2e for years... I was hiding under a rock for many years and didn't even know about 3.x till about 3-4 months before they were announced 4e was coming out. My group still plays my 2e game now and again, Pathfinder, and 3.x games. I am much more freeform, and we mix things together and use what works for us, and toss what doesn't.