If you have the money, grab a Knifeworks m390 ritter mini grip. It's amazing! Cuts a little better than the standard, and the blade steel is MUCH better. Only $129 or so, and I think some are popping up on the exchange here for less....
I bought my dad a standard 556 about a year ago and he loves it, but I much prefer the m390 Ritter version.
As far as the Delica, that's a tough one. In many ways, the Delica is the perfect Edc knife. Mine is part of a 3 knife group of favorite edcs that I rotate, the others being the ZT 0566 and the aforementioned mini grip. However, I certainly would not feel under knifed on a daily basis if I only had a Delica. Great knife
So I guess the mini grip vs delica thing is more about personal preferences. I hope I never have to part with either, but if you forced me to choose, it would be my m390 ritter mini based on aesthetics, steel, and lock type.
Good luck choosing, and I'm sure you'll be happy either way
