KoReader vs. Readest (on Android eInk)

[InnovationHack]

I have a few Kobo's and a few Android devices (eInk, viwoods). I'm curious whether or not to use koreader or readest on those android viwoods devices.

Also, is there a good way to make one of your kobo's the "best setup" and then clone that setup to your other devices easily? I don't want to have to copy everything over and over again and try to recreate my experience. This is one area where kindle "just works" because I pick up any kindle and it's the same as long as it's in my account.