I like Cook and think he is probably a lock for the final 3. Surprised you think differently. David A. is talented but can really only sing a certain type of song. Kind of a Josh Grobin kind of guy...
The next 3 to go in no particular order will be Kristy, Syesha and Castro. I think Castro is talented, but like David A. is limited to a certain type of music (see Johnson, Jack).
I agree it was a pretty boring week overall. I enjoyed Cook, Michael Johns and Carly's performances, but that was about it. Those three should be the final 3 (possibly swapping Brooke for Carly), but I worry about Cook and Johns being similar enough to steal votes from each other...
Here's to hoping the "themes" get more interesting soon...