Well, I've watched the Disney Channel for all of my 17-year life (kay, playhouse Disney or whatever it was called back when I was a kiddo).
Now, I'll admit... I miss Even Stevens (best show ever!), Boy Meets World, The Babysitters Club, and that show with the girl and the boy who were neighbors and talked to eachother via can walkie-talkies.
However, Disney Channel is at an all-time high. I don't think it's ever gotten this much attention before. High School Musical and Hannah Montana have been break-through. I personally enjoy the Suite Life of Zack and Cody. I find Wizards of Waverly Place slightly annoying, but it's a cute concept (though a total rip off of Harry Potter). I actually like Life With Derek (though it appears it's not Disney-created... not sure).
Personally, I dislike cartoons. I found the Proud Family soooo annoying, and Kim Possible was difficult to watch. For me, the less cartoons the better (though I do enjoy House of Mouse on ToonDisney).
Now, Miley Cyrus is annoying me in some ways. She's dressing like a hoochie and posing sexually with her father.... I've also heard she's trying to break off her contract with Disney. I'm sorry - Disney got her where she is today. She better stick to her contract.
But I think Disney Channel is becoming more successful..... they're producing great actors and actresses (errr.... so far Shia Lebeouf, but potentially Zac Efron [already in Hairspray], Ashley Tisdale, and Corbin Bleu). I have high hopes for Disney Channel.