Clemson's recruiting better than anyone in the country right now. That 40 will skyrocket in the next couple of years, barring a scandal.
Considering how much talent the state of Florida has, I'm surprised it's the second-lowest on the list. Maybe it's the academics that limits the amount of blue-chip recruits it can get (it was only a so-so school a generation ago, now it's comparable to Michigan and the UC system), but the fact that it has fewer highly-rated recruits than Notre Dame, Oklahoma, and Auburn (none of which reside in states which come close to the amount FL churns out year after year) seems that either it's the academics, or it's massively underachieving. Maybe a little of both.
Wisconsin has a double-whammy going against it. It places extra emphasis on academics, which limits the amount of highly-touted recruits it gets, but it's also several hundred miles from major recruiting hotspots. Chicago isn't the high school factory a city of it size should be (hoops is a different story), and the hotshots that are in Chicagoland usually end up going to Michigan, Notre Dame, Ohio State. Even schools like Texas, Ole Miss, and Oregon can snatch Windy City recruits and not give UW a second thought.
I really admire the job King Barry has done considering the limited resources he's been having to work with the past few decades. Stars be damned - Wisconsin's bread and butter is in the trenches - it churns out quality OL and DL like nobody's business. At Wisconsin, a two or three-star recruit with a chip on his shoulder and a couple of years' worth of seasoning is frequently better than a four or five-star recruit who is trying to take the easiest path to the NFL.