Radcliffe (just damm good music), Kershaw (the more obscure world stuff) + Harris (both his "country" and amerciana stuff) would cover about 1/3 of Peel's catalogue. I can't think who could cover the European stuff.
I'm genuinely concerned for who will take over the "championing" role. If no one does, what for the future of music in the UK? I dread to think. But it brings home how important this guy was.
However, this is missing the point entirely.
Nothing and noone could replace John Peel. The music was only part of what he contributed.
TBH, this is the first "celebrity" passing that I've actually been upset about. Caught the end of the news pulling out from work and only heard the word "John". I then spent the drive home trying to work out who it could be. I came to think of Peel and thought "surely not?"
I even used to listen to his Radio 4 stuff. Every so oftn he'd reflect on one of the stories with reference to his own family. You could just tell that he was a really nice guy.

Deek.