Tested both Greater Austria and Peloponnesian War in regular RT Map of the Week settings:
https://www.youtube.com/watch?v=eaC-xFaUAzk (Greater Austria)
https://www.youtube.com/watch?v=c71HQlSEU_E (Peloponnesian War)
I like both maps, however Peloponnesian War is too big for real-time game.Also, there are too many single territories with insane bonuses in Peloponnesian War, making the game pretty much a lottery game if played in default settings.
Greater Austria is much more balanced imo, and is more playable in both RT and MD.