American Idol 8 Top 4 - Best and Worst Poll

It's Rock Week on American Idol!
I thought the best was the duet of Allison Iraheta and Adam Lambert, but individually, the best was Danny Gokey. You can't write entertainment like that -- it just has to happen, and Danny delivered.
The worst was the duet of Kris Allen and Danny, and individually, I don't think anyone was really that off.
What do you guys think?