Uh, no.... most of them will gravitate towards the 17-55, since that's a really good EF-S lens that gives the appropriate effective FF range of the 24-70 while being fast, providing IS, and great image quality. The L lenses that 7D users hold are more on the long end, like the 70-200, since, for such range, non Ls can't compare.
Getting the 8-15 L for crop is not wise, neither is the 17-40 (since the 17-55 is more convenient). The 24-70 would give a good reach, but if you want reach you'd get a 24-105 (it gives IS too). If you're talking about primes, then I suppose you could say they'd go for Ls, but that's because you'd want to maximise your IQ, and any user would do so, regardless of crop or not.