Victory is actually pretty good, especially at the end with the final showdown between Star Sabre vs Deathsaurus as being what many fans consider to be the most epic 1-on-1 TF fight since Optimus Prime vs Megatron in TF:TM. And while the Dino Force characters are pretty goofy as comic relief, their final story arc is also pretty neat (similar to Gelshark/Sky-Byte). If you enjoyed The Headmasters, then I think that you'll enjoy Victory. It's not quite as good as Masterforce, but better than The Headmasters IMHO.
Zone is pretty forgettable as it's just a straight up 25 min toy advert. Although the animation andaction^violence is memorable. And it's pretty cool seeing Micromasters in action. But story-wise you're not missing out on anything. Although it is only one episode.
Poll doesn't include Scramble City. But I doubt that would be anyone's favourite. Just like Zone, it's nothing more than an advert, only really, really badly animated.