This is something that hasn't been discussed on this board recently, and I would like to just mention that Ross from the Ross on the Radio newsletter published recently that KIIS was on an upward tick due to becoming a more "mainstream top 40" station compared to the former rhythmic leanings of the station and competitors KAMP and KPWR. Obviously, the ratings don't lie, KIIS is a some of it's best ratings in the past few years but is it all due to their more mainstream offerings? I've compared the KAMP and KIIS playlists and there aren't too many difference between the two. Similar to comparing KROQ and KYSR.