Generally speaking, it's a bit of whatever. Here is what I would start with and why-
1. OAR Learned- You probably won't have this up long, but you should put it up initially to ensure you hit -1 (meaning you have good enough fuel for the tune). If it doesn't hit -1 somewhat quickly, either swap to a lower octane tune or start using a different fuel station. If it hits -1 quickly then swap it for something else unless you use multiple gas stations.
2. Boost- This will show you if you have a boost leak and if you're hitting near your boost targets.
3-6. Ignition Corrections on all four cylinders- It's a bit redundant initially, but after driving it around for a few weeks with all four up you should have a good idea of how your car is responding to the tune/fuel and if you have a weaker cylinder it will help show which one it is. After a few weeks (or however long it takes you to feel comfortable with how your engine is responding), drop three of the monitors and just leave your 'weak' cylinder up and swap in whatever suits your fancy.
Other notable monitors-
AFR- People like to feel good knowing they are hitting acceptable fuel targets.
Oil Temperature- It's inferred, but someone much smarter than us came up with the algorithm. It lets you know when your oil is warmed up and is ok for going full-boost.
Coolant Temperature- Not necessarily for daily driving, but if you do some spirited driving or auto-x it will be good to know if you're getting hot.