Though I like both trims, I voted Northfield. If folks are wanting to try and keep the knife as unique as possible, the long pull in particular separates it from the nail nick on the 2017 sheepfoot. Also, the Northfield trim just adds a significant amount of class to the knife.
I like GEC's match strike long pulls and will likely vote for that should it be an available option. It looks awesome on just about any knife. Though I know there are folks who are determined to rain on just about any parade, the notion that a match strike pull would gum up with food and crud more than a standard long pull is kind of reaching. A long pull already gets gummed up and requires a quick cleaning with a rag or brush, a match strike pull isn't going to exacerbate that in any measurable way.