Wow, that is tough.
I sit here at my desk with a #72 and a #73 staring at me, I think they ready the thread while I wasn't looking.
My #72 is the classy gentleman folder, it has a very silky smooth open to it and it "clicks" into position with a very affirming, well, click. The lock is tight and the blade doesn't get that urge to wriggle about, it just stays put. I have one with a Stainless Steel blade, so it's my food prep knife. It goes everywhere I do and it cuts what needs cut. I used it for steak the other day and it cut like a champion, it's a very nice lockack.
My #73 is the cowboy of this story. He is the one at home on horseback or in the field, as long as there is a tough job, do it now, knife work, he is ready. I have busted bails, feed sacks, fertilizer sacks, I have cut PVC pipe and many, many other various duties to be done on a farm. The is the knife that Slams into position and locks up with a very smooth liner system. They are just about the same size, but the #73 is more work ready, it can handle a little bit more. It is chunkier as well so it doesn't get the slim carry award.
You can't go wrong with a GEC, and you are on the right track with the two patterns selected. :thumbup: