Raw stats for both last year:
Huntley: 150/234 (64.1%) for 1788 yards (7.6 ypa) with 12 TD and 6 INT in 9 games
Wilson (as a starter): 116/176 (65.9%) for 1514 (8.6 ypa) with 11 TD and 3 INT in 7 games
But here's who each QB faced (and their ESPN defensive efficiency ranking from 2018):
Huntley: Weber St. (NA), NIU (#30), UW (#15), WSU (#64), Stanford (#37), AZ (#89), USC (#50), UCLA (#84), ASU (#74)
Wilson: Hawaii (#118), NIU (#30), Boise (#32), UMASS (#124), NMSU (#115), Utah (#13), WMU (#111)
Averages?
Huntley: 55 (with no sub-100 teams and wins over top 50 NIU, Stanford, and USC)
Wilson: 76 (with 4 sub-100 teams, and no wins over anyone above 100)
Wilson might be Mangum 2.0 here. Beats up on bad teams, folds against better teams. It's hard to say, we have a very small sample size, but so far he's beaten not a single good team. When all he had to do was get a couple of first downs to beat Utah, he couldn't. Same with Boise. One TD beats NIU, can't get that.
So the stats are essentially equal, but Wilson gets the benefit of a much easier schedule. Maybe he's better, but his 7 games haven't shown that yet, because he's not been able to get it done in close games against good teams (remember, your big wins last year weren't with Wilson at the helm, he didn't play in either of those games)