No SD really isnt anything for me, I have a 16g right now that I dont come close to filling up.
Right now I feel that my main choices are the Nexus and Rezound and to be honest if I had to pick right this second I would say the Nexus mainly for the unlockable nature without voiding my warranty by doing it and ICS. This isnt to say that the Rezound isnt a great phone... but the unlockable portion having to go through HTC's site is a fairly big turn off for me and I really want to have full control over my device like I do with my Moto Xoom.
NO matter which device I get, I will more than likely buy the extended battery with it as I know 4g LTE battery life sucks, the only reason is sucks less on the MAXX is because they dumped a massive battery in it, still doesnt mean they fixed the issue of 4g sucking battery power like crazy, it just means they found a way around it for now.
I think my girl is looking at the Rezound and if so I will probably jack the headphones since I use them at work all the time.