Despite a few awful characters portrayed by weak actors, my vote goes to Corrie. It's been one of my favourite years on the cobbles this decade.
Some of my highlights have been Bethany's grooming story, David & Shona, the return of Peter and Toyah, the introduction of Daniel Barlow with a great (but brief) return for Denise Osbourne. Then throw in Phelan and Andy's story, the great humour from Gemma, Mary, Norris, Rosie and Eva. All the stuff with Sally & Tim topped off with the beautiful partnership between Rita & Gemma.