Since Nebraska joined the B1G: Wisconsin vs teams that had a higher recruiting ranking: Rankings per 247 Composite.
2011: Wisconsin was ranked 44th: Wisconsin went 4-3
2012: Wisconsin was ranked 65th: Wisconsin went 5-5
2013: Wisconsin was ranked 40th: Wisconsin went 1-4
2014: Wisconsin was ranked 32nd: Wisconsin went 1-2
2015: Wisconsin was ranked 41st: Wisconsin went 2-1
2016: Wisconsin was ranked 35th: Wisconsin went 3-3
2017: Wisconsin was ranked 39th: Wisconsin went 3-1
So in the 7 years since Nebraska joined the B1G, Wisconsin has gone 19-19 against teams with better recruiting classes than them. That's not elite. That's average.
Eh .... 19-19 as a record by itself is average. But in the subset of games against teams that have out-recruited a particular team, I bet it's pretty decent. Probably not "elite" but it's got to be well above average.