Lol, I'm the opposite; can't stand Kerrang's DJs, they are awful, but they play better music (in my own personal opinion) than most other stations. Funnily enough my musical tastes seem to have changed with theirs; early noughties I was into my Rammstein, Sum 41 et al, whereas now I'm much happier listening to the stuff which Kerrang are playing. I guess that, taking the radio/music channel listening population as a whole, they get better figures playing more mainstream stuff. A shame that there's no longer a metal station, but at the end of the day money talks!
I don't mind Johnny Doom and Simon James and Hill. The rest of them annoy me. Especially Kate Lawler, I refuse to listen to her. She grinds my gears.
There isn't any real other alternative though, I have to carry CD's with me if I go on a long drive / commute.