If the WW1 format is the one I'm thinking of, it stinks. (I know it is WW1, and I only see one Oldies format) Then again, WCLS is a crappy station. Their announcer is so bad that I couldn't figure out why they were IDing as WZLS for the first several dozen times I heard the ID. And to fill (what I guess is) a mandatory break on their "ad-free" weekends, the announcer talks about how great 'Classic Hits 97.7' is through all but :30 of the spotset, with the rest being weather.
(I know, they call it Classic Hits [Jones's brand], but it is WW1)
Oldies Radio is probably one of my favorite oldies "stations" - that one and WIAU/Indianapolis