We just returned from our trip yesterday and did EE at AK. We were there before they opened and were one of the first in the park. By the time we got to the safari the line was about a 10-15 minute wait.
If we did EE to AK for the rides, it wouldn't be worth it. What we enjoyed however was walking around through the trails while it was still cool and uncrowded. We got fast passes for the safari and did some exploring before 9, then went through the Jungle Trek as soon as it opened. It was nice to be able to take our time and see all the animals without the crowds and while it was still cool.
By the time we got through the Jungle Trek and Flights of Wonder it was time to get a fast pass for Dinosaur and use our safari fast pass. We were able to ride everything we wanted to without no waits or by using fast passes and be done in plenty of time to watch the parade.
As hot and muggy as it was last week, EE was well worth it!