Hi msully,
My understanding is that Cyclone and Road Warrior are at the top. They're essentially the same and I think they allow Heartland to have more dealer coverage while still giving dealers exclusive territory.
Torque and Edge are at a lower price point and come in both 5th wheel and ball hitch models. I don't know if there are substantive differences between them or if perhaps it's another way to get dealer coverage.
You can check out standard features and options at the Heartlandrvs.com website. If you need additional information beyond what's there, I'd suggest you call Heartland Customer Service at 877-262-8032 / 574-262-8030. Ask for the Toy Hauler Sales Team.
And if you can get up to Indiana, take a factory tour to see exactly what is under the covers and how they're built.