Joule is still new and default. I like screen one, power, HR (don't have a monitor though), cadence, speed, kJ, ride time, and max/avg of whichever. The time of day is on there too, in microscopic font on a dark background. So far I've been using it to inform me Im not feeling so hot lately. And I use it to my ride average at around 200 watts unless I decide I deserve less (usually last of 3 commutes in a day).