I use a mountain biking messenger bag and just throw all my discs in there. A towel and a water hang out with my discs. Somewhere in there I also have a baseball (in an internal pocket). Other miscellaneous things in an outer pocket. Since I only carry nine discs it's quite easy to find the right one.
my bag is set up in 3 slots, 1st slot is my putters, my 2 kc pro aviars, then my 2 banger gt magnets! then in the middle slot is my champion wraith, champion tye-die valkaryie, champion blue valkaryie, champion banshee, champion groove, champion boss, pro wraith, 2 tye-die millenium drivers! then in the 3rd slot I have my 2 kc pro rocs, buzzz, shark! then my lucky kc pro aviar putter in my putter pocket!
Okay so when I organize my bag ( almost never) there is not really Favorite to least favorite... all least favorite disc's stay out of my bag. But when had more disc's in my bag, and organized my bag it was Mid/Fairway/Long-range. The DGC I play right now is nice and open and I went from 20 disc's to around 8 and a putter... not as many needed... and more room for that water we was talking about!