I just went through planning a similar trip - one where I think we will spend more time at the resort than at any parks (we've had a rough year and need to relax... heh).
My final decision, after much of the usual hand-wringing and obsessive research, was 2 nights at the Hard Rock Hotel at Universal (Entertainment Rate) and 4 nights at AKL (Florida Resident).
My reasons were:
1) We're going to do 1 day at Universal IOA, so staying at the Hard Rock will get us quick line access. But aside from that, all the Universal resorts seem to have a lot of things to do and look at in the resorts themselves, plus very nice pool areas, and are all within walking distance to the parks and to CityWalk.
2) AKL seems to have the most bang for its buck if we want to just chill at the resort - it's frequently described as 'relaxing', it's got all the different levels of food service, it's got the spa, the pool, sounds like lots of stuff to look at in the hotel itself, and of course the animals.
I've never been to either resort, but this was what I ended up with.
