I love the Payload mode, just in that game I kept crashing and couldn't get any good kills, not to mention red getting steamrolled. The worst is probably Hoodoo in my opinion because there are just huge choke moments on many points, the action can just bottleneck.
I'd like to know why Frontier is so rarely seen now, I really only got to play it when it first came out. I can understand if people hate how the cart works but it is probably the most fun. If someone made a Payload race with that kind of cart it could be quite interesting.
Also Payload TC should be made, but probably impossible.