Let's see....
Pants - Dye is still tops. JT's were the best for a while but the new version is just too much. Too many zippers, pockets, etc. The Dye's are a nice balance between form and function.
Jerseys - Function goes to Dye here. The 2003 Dye jerseys are insane, with the padding and grippy things on the shoulders. Style-wise it's a toss-up between the two.
Gloves - Another toss-up. Both do the job. I didn't find one significantly better than the other.
Masks - Dye Invision over the Proteus but the Flex-7 is about equal. The Proteus lost because I can't even get my big ol' noggin into the darn things
I've never had a fog problem with the Invisions but your milage may vary.
Pads - The JT Skinz were nice until the first time I played with them. A couple of good slides and the spandex back started to rip. Dye's have been fine so far, especially the Slider shorts with built in cup - gotta have it
Casual - Tshirts, etc are about even but Dye's got a more extensive line now. The new technical shorts are great.
Damn, I sound like I'm sponsored by Dye....