What type of tires do you use?

[sprix!]

I'm currently on BFGoodrich KDWS but not by choice because that's what came on the car.

Brand: BFG
Model: g-force KDWS
Size: 235/50/18
Performance rating: W
Treadwear: 400

Previous car:
Brand: Yokohama
Model: AVS ES100
Size: 245/45/17
Performance rating: not sure. I think it was V.
Treadwear: 280

Brand: Goodyear
Model: Eagle Gatorbacks
Size: 245/45/17
Performance rating: Z
Treadwear: 220

I've never had tires that stuck like glue. But the ones that do probably don't last long anyway.
Are Sumitomos any good? I saw'em on Tirerack and the price is right.

Sumitomo sucks for performance tires, in my opinion. They just can't compete with leaders like Bridgestone or Michelin for performance. If you want a touring tire, perhaps. Performance- no.

For my experiences, I will limit it to this same car and the most recent three tires I chose.

2006 S2000
Brand: Bridgestone Potenza RE760 Sport
Sizes: 225-40-18 F/ 265-35-18 R
Rating: W
Treadwear: unsure

This is what I am running now. When they are warmed up, the grip and overall performance is top shelf. Excellent wet and dry traction. The tread pattern is wicked and looks very aggressive. The major downside to these tires is the fact that they are like blocks of ice before they warm up. Noisy and uncomfortable when you first start rolling.

same car/sizes
Brand: Dunlop SP Sport 8000E
Rating: W
Treadwear: unsure

Terrible performance tires. They were reasonably quiet, but the grip was nonexistent. Handled wet weather decently, but the dry traction was monumentally disappointing. If you want something to last a long time, and could care less about grip, this might be your tire. I was entirely underwhelmed with the performance of the tire, and I only allowed them to stay on the car for 3 months before I could no longer put up with the sub-par performance of them.

same car/sizes
Brand: BF Goodrich G Force KDWS NT/ aka "Scorchers"
Rating: Y
Treadwear: ~320

These tires are pretty good all the way around. Dry grip is acceptable and predictable. Wet weather traction is above average. Tires are exceptionally noisy, but they ride smoothly despite it all.