Definitely Radio Caroline for me. Great mix of mainly prog rock, blues, modern stuff all selected by the actual DJ's who are passionate about the music they play. If a DJ wants to play an entire side of a Pink Floyd album, then they will. You won't hear Stairway to Heaven 10 times a day: in fact the tired old 'classics' are not often played.
If you like older 60's type stuff, then they have their 'Flashback' stream.
Most importantly, they don't do the news or travel news and have one or two short ads once per hour.
All in all a very refreshing change from modern stations- some of the guys were on the Ross Revenge or Luxembourg. It's a listener supported station and is well worth supporting!!
Give it a try
All the best
Nick