While I'm not terribly impressed by Philips stereo systems (give me Aiwa or Koss), I do run a no-longer-produced Dynamic Edge. After the Hercules Fortissimo II I still have, the DE is my favorite sound card. I try not to buy based on brand alone, but I do look at certain brands closer than others.
I had an original Audigy, and, quite honestly, I couldn't tell the difference between it and a Live! 5.1 card...kinda sad. Now, I've heard pretty good things about the Audigy 2 ZS, but I'm happy with what I got, so until I require something else, I'll be sticking with the DE.
I've always heard pretty positive things about M-Audio (formerly MidiLand) regarding the sound quality, but never used 'em.