CR has two Club Levels - Atrium Club which is on the 12th floor and Tower Club which is on the 14th floor. Atrium Club/12th floor is all standard rooms and is what most people are talking about when they say "CR CL" around message boards and such. Tower Club/14th floor is mostly suites and most of the rooms have to be booked via phone (some suites are bookable on Disney's website).
(Sorry if you already know all of that!!)
The "Standard Room - Atrium Club Level" that is on Disney's website will be the cheapest CL option and will be on the 12th floor, facing Bay Lake.
I personally would rather not be on the Chef Mickey's end of the building, but I always feel a bit bad in mentioning this because it's one of those things that's not really that big of a deal. You could be out/about during your whole trip and never hear anything. We just happened to stay at CR a few times when our kids were little/napping and recall the noise drifting up rather clearly so it's just something that has stuck with me.
This map is a little hard to read, but it should help. When I book that room category, I typically request "Away from Chef Mickey's, Example rooms 4810-4824." Although last time I didn't feel strongly enough to even send a request - so it's sort of a tweener for me.
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Sorry that was long, but hope it helps. Happy to answer any questions.