I have the mini, the regular fullsize, the fullsize in M2, and the fixed blade.
I EDC the mini, so it is with me every day, excpept when camping, so its been carried the most.
The regular fullsize is on my pocket when camping. I like the feel of the fullsize much better than the mini, but the mini rides in my pocket better. When camping the fixed blade is in my daypack. Lately the fixed Rittergrip gets used more than the fullsize folder, but only because I enjoy using it. I wouldn't leave the folder behind.
The fullsize in M2 stays home. Yeah, I know I should use it and enjoy it, but its the closest thing I have to a collector knife.
I also have Doug Ritter's Gentleman's knife. It goes with me when I wear a suit, which is very rarely. Thank goodness! I consider that a collector knife too - whether it is or not.