I think Universal stepped up their game recently. King Kong 360 3D opened this summer and really drove attendance up. It's also unique to USH vs. UO/IOA and makes the tram tour even that much more exciting. The Waterworld Stunt Show holds up very well after all these years and is definitely a must-see for first time visitors. Oh, and as the OP was planning a trip in 2011...sometime next year, The Transformers ride will open. I haven't heard of a specific date, but I'm sure it will be a great new attraction to the park.
If anyone does plan on visiting during the summer months, the same tip from Disney applies: try to get there at park opening or as early as possible in the morning.
One other observation: the employees at USH (I think they're called "team members") have been tremendous. I don't know if there was a specific change in training, but I was very impressed over the course of my three visits this past year. They are friendly, helpful and LOVE to take pictures of you and your family/friends with your camera. Sometimes at
Disneyland, I feel like I'm imposing the Photopass photographers if I ask them to take pictures with my personal camera. At Universal, it's the opposite. I usually didn't have to ask! Someone would ask me if I'd like my picture taken while they were reaching out for my camera.