Innova Star plastic because of all the wooded courses here in NC. It's durable and takes a lot to really beat in that material. Innova KC Pro plastic for my rocs and aviars. I have felt the Latitude 64 Gold Line plastic though. Pretty effin' sweet.
Sometimes you pick up a disc and immediately love the feel of it. That must be why I have more than a few discs in my collection.
I was playing in a doubles tournament in January and looking for a disc to give my partner, so I went in the Discraft factory and started grazing, checking out the new stuff, looking, touching, comparing.
The new runs of Z Buzzz (which I love anyway) felt superb so I picked out a max weight, flat as a board, orange with a white hotstamp (creamsicle, oooh, orange and white) disc, which felt...perfect. Then during the event I forgot to give it to him (sorry, Tom Jenkins). No really, I did. C'mon, there were a stack of them.
Then it sat in my trunk and I kept noticing it from time to time. And each time I thought, dang, this is one fine disc. Eventually, I tested it. I learned that the Z Buzz which has been in my bag for a couple years has finally broken in (it happens so gradually you don't notice it) and the new, fresh one is much stronger. Now the new one is in the bag, too. And flying great.
When you really, really, like a disc it flies better.
Being a practical guy, I prefer the plastic which works best. At the moment I have D plastic (Magnets and an old school Rattler), Rubber (Rattler), X (Buzzz), ESP (Nukes) , whatever that stuff in DGA plastic is (Rogues) and Z (everything else). Mostly I love Z: the clear, indestructible, typically flat plastic.
Z usually comes out flatter and more stable than the other plastics. Z is the shizzle. I hope they can make a Nuke in Z.
So I was in the factory last week. I won a local event and earned a few discs through my Team bonus and was grazing, looking touching, feeling, comparing. I always check out the newest runs of whatever I throw and the Z Buzzz's felt....perfect: Dead nuts flat, grippy, strong. So I looked for the unusual color blems ( when discs are being made and they are switching from one color to another, the last of one color as it transitions to another produces unique colors) and found a couple yellow/orange/pearlish/swirly discs. Who knows, if I happen to lose the creamsicle Z Buzzz there just might be an opening in the starting line-up.
Big fan of Z, like Mark said it comes out flatter and there no disc better than a flat top crush but unfortantly my fav is the Cam Todd blend they used for the challengers. Theres a chance they will come back. Cam you can do it buddy!