Graded A++ to F.
The exclamation points are overkill. You've got a great line, no need to be insecure about it. Grade: B.
A local plastic surgeon.
A tad long, but very memorable. Grade: A-.
I've seen many "drop your pants" dry cleaner slogans, but this one wins because of the "prompt attention" ending.
EDIT: "Drop your pants here and receive prompt attention." Always look to make any tagline shorter. ALWAYS.
Grade: B-.
Not original, and unappetizing. Grade: D.