I always collect of bunch of different kinds. My favorite this year is Hawaiian Punch (specifically Lemon Berry Squeeze

).
The Sweetart candy canes taste good but don't taste like Sweetarts to me (probably just the texture). And the Pixie Stix ones do have the powder inside, but it's stuck in there and doesn't pour out.
Warheads are good too. Far less sour than their smaller counterparts.