We were at WDW last week (Dec 1 thru 9) for our 4th visit. Our DS is now 8, and Jungle Cruise has been one of his favorite attractions. We wondered this trip if he'd outgrown it, but no, he wanted to ride it again (and again, and again).
The first trip through was what we'd expected -- a bored CM and the precisely same tired jokes. BUT, the second and third times -- late in the day, I might add -- the CMs were SO good that DH and I were dying with laughter -- and again, remember, we've probably ridden this thing more than 20 times.
Really -- the second great CM did things I've never, ever heard before -- the guy should be a stand-up somewhere. Since we've come home, one of us can repeat just a part of a line from this guy and we all start laughing. Moral of the story: don't give up on the Jungle Cruise! In the right hands, it still has the makings of an excellent attraction, especially with the animatronics as opposed to real creatures.