For Dogs, Whamo Fastbacks and Hyperflite fastbacks are good. If your dog has a hard bite, Jawz is a great toy for the dog, but doesn't hover like the lighter weight discs.
For sport..... which one?
Go to Disc Stalker in Lawrenceville or Disc Caddie in Marietta.... Dicks....
"When a ball dreams, it dreams it is a frisbee."