The research I did, for what it's worth, showed the Mitchelins to be best all round but at a price. Second best, I found, were Goodyear GSD3s at near half the price.
I checked the Which? guides and a tyre review web site where users gave their views and how many miles they had done. The site totalled the miles and averaged the ratings so you get a good idea of how good or bad the tyres are. Can't remember the site.
I went with GSD3s on the rear and have been very happy so far.
Malc