Spits are pretty overrated in my opinion. Maybe I just have bad luck but every set I've had ended up flat/coned/YELLOW in a matter of weeks. My Koston Frostbites actually have CHUNKS missing out of them
I had a set of Darkstars back when they first came out and they were actually really nice. That was at least 10 years ago though, I'd stay far away from Darkstar these days.
I'd really like to try some Bones or Autobahns though.