Star Boss and Star Katana are very overstable and can handle a lot of torque and snap...and work much better after being broken in. The Latitude 64 Gold Line Halo is sweet right out of the box and my Elite Z Nukes are a bit understable when I put the power-grip and some torque on them.
All of the feedback on the Halo has been very positive in both types of plastic.
For me it's (from most stable to least)
Star Katana (if it was 2nd run champ. It would be the least stable)
Z Nuke (not as stable as the ESP Nuke. Poss, because the rim is not as wide?)
Now I throw approx. 300 up to 340 (340 on a good day), and have only hit approx 390 to 400 once with my ESP Nuke.
I put a Striker in my bag and haven't looked back since. Great glide on a very straight disc. Can get it to turn over a little into a wind, but can't say how it does into a large headwind. I lean toward a boss when I get into those situations.