I agree; WVFM now has a pervasive modern AC lean.
The station used to play a substantial amount of classic rock (mostly 80s and 90s), but nearly all that material was dropped a month or two ago when Midwest Communications took control of WZUU.
WZUU itself was reformatted from classic rock to mainstream hard rock.
Midwest now owns or controls a big number of radio stations in the Kalamazoo and Battle Creek area. WVFM, WNWN, WFAT + an FM translator, WQXC, WZUU, WKZO + an FM translator, WZOX + an FM translator (which now rebroadcast 98.5 WNWN), and WTOU-FM (which was relocated recently from AM 1660 / 95.5). It also owns WTVB + an FM translator in nearby Coldwater, MI.
The most popular radio station in the region by far, though, is Townsquare-owned 103.3 WKFR.