What's your favourite gear ratio?

Think this is around the point Indra is making: Pentonville Road is not a hill.

46 x 15 feels great with a clipless setup but not that comfortable when I was using straps and cages back in the day.

80 gear inches or roundabout there feels good but I hate hills with stop start traffic like leaving kings cross to Angel. Can do it but its more annoying than anything else cause as soon as you build momentum you have to stop.