I knew a couple of the lead guys at Deka, I trusted the company pretty well in the 2015 timeframe based on their knowledge. If nothing changed I'd expect them to be a good AGM option
I have two very old Optimas, and they keep kicking but I also have a Genius battery restorer that I run at the beginning of each season. I doubt the 2012 model will be with me much longer, but so far so good. However, even though I have them, I have never been that impressed with Optima
I like the AGM because it's clean, sounds like Greg's options have some power too, might try one this spring