Good Question
couple of months ago I had the same questions - was thinking of upgrading the quality of my folders
Bought the the
- Ritter Mini Grip, and the Delica
- Ritter Grip, and the Endura
All good knives
For the smaller - The Mini Grip by far!
For the larger - I'd be tossing up between
The minigrip is far slicker in opening and closing, great lock, and a good blade profile and shape.... and only marginally thicker than the delica. To me it is a clear winner and the one in my pocket around the house and in the country.
For the larger size - the handle on the full size grip is not as good to me and quite thick for a Jeans front pocket. The endura profile whils not having the same belly in the blade is still a good pragmatic blade and is much slimmer
As for steels - I have not used them hard as yet - but they are all clearly good S30v VG10 154CM
You could do the same and as previously suggested buy them all - if only one then the mini grip, prefferably ritter
I am hoping to find an equivalent of the full size grip with full skeleton and flat scales, non tactical look - and an axis lock