hildasmuriel, I love all those you mentioned.
Hilda at home, after Stan died, with his glasses case in her hands, crying quietly, is one of the best and saddest scenes ever.
Jack and Vera were just brilliant.
Phyllis and her endless pursuit of Percy, she always thought one day he would be hers... 
Maud, Blanche, Fred Eliot, I loved all of them.
A few more of my old favourites, Eddie Yates, (he used to live with Stan and Hilda). Mike Baldwin and Alma, I loved both of them.
Maureen and Reg, a great comic couple.
Bet and Alec - I loved the way they saw right through one another, and were well matched.
Curly, Raquel, Des Barnes...I loved them. Curly and Reg together were hilarious.
Betty, nobody could quite dismiss notions quite like Betty could with that 'huh'. I love the way she is immortalised in The Rovers, with her photo on display, and her hotpot still in demand.
So many of those characters carried off really funny storylines, and really tragic ones, with equal skill, and that is what made them so great.