Somewhere in that wonderful thread
http://www.pprune.org/military-aviat...evet-ww11.html
the late Reg Lewis (regle) compares the Lancaster and Halifax from a pilot's viewpoint. I seem to remember that, having spent most of his heavy bomber time in the Halifax, he felt much safer in it than in the Lanc. Although the Lanc was a much nicer aircraft to fly he was better protected.
I have tried to find the actual post but there are too many posts to wade through.