Currently use the standard Jayco wind up antenna and for most places it works well.
I also have a Saturn antenna from my old expanda that I intend to install instead only because it can do both vertical and horizontal signal. Some places around Australia provide for horizontal signal. Other places only offer the vertical signal.
i have a happy wanderer antenna, easy to set up, packs up small and easy to store and we had no real issues with picture but i will get a power unit for it to improve it.
Cheers