No preference really. I never dated a girl taller than me (never had the chance), but I never really found height makes much of a difference. I sometimes like short girls, sometimes ones around my height, sometimes taller.
In general I tended to like girls with longer limbs (longer legs and arms, longer neck) which might imply taller, but I've not found that's always the case. Some girls have lengthier proportions even if they're shorter, and sometimes I find exceptions anyway.