Hmm, let's see. Emmerdale is really short on good couplings at the moment. I'd go for:
Val and Eric
Robert Sugden and his ego
Laurel and the bottle
Ross and Carly (and in my head, Ross and Chrissie)
Kerry and Invisible Dan
Harriet and Ashley
Priya and Rakesh are hot but they don't do much.
Cain and Moira always have potential but all they do is have marital disagreements and make each other cups of tea.
ETA: Oh, and I briefly tuned into EE and thought Kush and Shabnam were lovely. But I understand from spoilers that
Shame.