While I will agree the the Pre 2 has faults, all phones have issues. Palm is playing serious catchup and should thank their lucky stars for HP. WebOS is moving along nicely, and I expect we will see updates become more frequent in the near future. (Once the true HP WebOS devices are on the market)
As for the Epic, I will never buy another Samsung device. They just now put 2.2 on that device, and are having issues once again with their Windows devices. Nice hardware, but **** poor customer service and updates. I had issues with 2.1 and battery drain on Android as well. Let's face it, if batter life is the end all be all for smartphone customers, we would all be carrying iPhones. Apple has nailed their OS in this regaurd.
I just took the Atrix for a spin and I have to say the most impressive thing about that device is the browser. Flash video works great and does little to slowdown pages while running. Tegra Zone is cool as well and hopefully takes off for android users. I don't particulary care for android because tweaking is not my cup of tea anymore.
In order, these are my favorite phone OS.
Windows Phone 7