I'd have to say that USH is better planned and far more exciting. For one thing, the park boasts three relatively new major attractions and two minor. The attractions are Shrek 4-D, the Mummy coaster, and the Simpsons ride. The Tram ride will see a new collapsing bridge, plus a replacement for the old Kong.
Compare all of this to Toy Story Mania, and ..well, it can be said that disney has been sitting on it's butt the past couple of years where DCA is concerned. However, the new makeover will make it a far better experience than USH in terms of rides.
Where food is concerned, there are far better dining options at DCA. In consideration of the overall experience, I place a much higher value on rides and other attractions than I do food.