Ianh54
6
Personally - though bear in mind im pretty new to synthesis - i think the presets on both arent great showcases for their abilities. The P6 is more immediately accessable because of the lack of menus, but i think with a little time the AK is pretty easy to navigate.They compliment each other very well… id say the P6 is definately more :performance: oriented ( im far from aplayer so i sequence mine from the OT ) whereas i spend more time programming and getting more off the path sounds with the AK.
Then theres the sequencer… cant beat it!!!
I agree that the presets on the Prophet are safe… both are amazing instruments and it takes time to learn them… i also agree about the wide :sweet spot: on the Prophet.
To be in a position to get either is a happy place to be 
good luck with whatever you choose
Peace x