My wish is that Live's metronome options would not be hidden in a drop-down menu. Specifically, I'd always like to be able to see whether or not count in is engaged, and to what number of bars. For me, it could just be a small 'none', '1', '2' and '4' buttons that light up, and I would be very happy.
(I like to switch between count-in on and off, and between different amounts of bars while producing, and I often forget whether it's on or off.)