I went with Telex because the specs were the same as the Clarks, but they were a lot cheaper... durability hasn't been an issue yet (avg. 20 hrs/year so far, so...

). Haven't had much trouble with the "slimy earpiece" factor, but you can get washable covers that slip onto the earpieces. You can also get pads that wrap around the headband... i'll admit that a few years on, my Telex padding has a tendency to "go flat" pretty quickly; gets a little hard on the noggin after a while.
I really like 'em (quiet, light, rugged,comfortable eough for 4-hr flights at least), but eventually I'll get a second headset, and it will most likely be David Clarks, just because I've heard they're super-comfy and"bombproof".
The ANR headsets don't seem necessary to me unless you'll be doing a lot of open-cockpit flying or whatever... and having to fuss with batteries.... no thanks. And it's nice to be able to at least hear the engine! Even with my passive Telex set, I often lift them just to have a good listen.