I'm currently between bags, so I'm only carrying like six discs for the moment, but I'm just going to post what I was/will carry with an actual bag.
Fairway (that can go far as ****): QJLS' - I carry two normally, a newer and kinda domey Sparkle QJ, as well as a flat old candy one that's well beat. The new runs have a tad more glide (due to dome) and usually require a little more room to work with; also not as good in the wind. The beat up (but still stable) candy one is more for 'ropes or low hyzerflips, which is more or less my daily driver. If I need something more stable than a hyzer with either of them, I either push out my Drones or power down on my QOLFs.
Tweener (though they are distance drivers): M, S, and Q OLFs - I keep one of each in the bag. M-OLF is my understable driver (don't use it very often) for long distance standstills, big turns, occasional roller, or some tight gaps requiring distance [after the gap]. Flat, by the way. The S-OLF (also flat) flies very much like an Eagle, with both turn and fade and great control. PD is to Teebird, as OLF is to Eagle. My Q-OLF is very slightly domey, and the most stable of the bunch. Used for wind, hyzers, times where I NEED the fade, occasional roller, occasional overhand, umm...you get the picture.
Distance distance [not a typo] driver: Rampages/Icon Cannon - I've tried too many wide rimjobbers to have only liked these, but it's true. I don't have huge hands, but they still seem to feel better than Forces or Bosses or Nukes or whatever. I have two Rampages in the bag, a 175 Pinnacle (stable max-D beast) and a 165 Protege for tailwinds and such; also used like the M-OLF for distance standstills etc. I only have one Cannon I bring out, a 175 Icon. Sits between my two Rampages, it's more there for my second throws in casual rounds so I can learn the mold better. DISCLAIMER: I only throw Rampages/Cannons on 430'+ open holes (which is maybe once a round on my home course), unless it is a very rare circumstance where footing is compromised and distance is a necessity.