This question comes up fairly regularly.
From the last discussion I know Marks and Spencers came out very well, Mrs PG. and I have an annual policy with them, had it for three renewals, checked the best deals around every renewal and none seem to be able to beat it for similar cover.
We are now both around the big 50, there maybe have been some better deals around for the real youngsters..!
Try these
FT search results they may include some useful info.