What do I listen to? Well, I suspect it's probably different to your tastes but, since you asked, here goes:
Throughout most of the night (I'm an insomniac): BBC World Service. Why? Because I can't stand music when I'm half awake and half sleepng. I want to listen to intelligent speech radio. If I can't get to sleep, I might as well learn something about world affairs.
The radio alarm is set to Radio 2. Why? Because I like to wake up to something which is lively, intelligent and not too jarring.
Throughout much of the day (and certainly for much of the evening): BBC 7. Why? Classic comedy, intelligent drama and total escapism.
Intermittently during the day (particularly at 1300 and/or 1800): Radio 4. Why? For quality news programming.
What else do I listen to? RTE 1 (the Irish have a unique approach to speech radio), Arrow (the Dutch station on 675kHz which carries a good mix of current music and golden oldies - It can be heard across most of the UK), 5 Live Sports Extra (when there's cricket on) and the BBC Asian Network (because I like to be adventurous!).
Chris