Me, I've got a few older ones, a couple linear tracking TTs for fun, but actually use the "run-of-the-mill" Audio-Technica LP120 (modded out the internal preamp) with a DJPRE II preamp for basic everyday (yeah, right) use right now. I'm actually looking for a new cartridge to replace the mediocre AT95E when I find the right price.
I'm sure some of you have me beat with some Pro-ject or Rega, right? Maybe some cartridge that costs three times my TT? C'mon, let's break out the TT porn here.
By the way, I've always wanted one of these if you're ever thinking of a gift:
http://www.elpj.com