I seem to prefer the lonelier roads. I know my own effort is all it is if I choose the TT bike, and often do. Just that the world hack means fewer "high load" glitches in Zwift also. Like, you don't see all the weird flying bikes or people soaring off into the woods like you do sometimes in a really busy world.
For road bike, I'll often do something with an Epic KOM or Alpe climb. The w/kg and length of climb seems to somehow negate a lot of the weirdness where it is flatter. No idea why. Also that way I gain elevation towards the Tron bike.
Our Zwift group has a custom team kit on there that the blue Tron wheels would look awesome with!