I own a trek flatbar
I just bought a Kona cross bike

Both are good brands, both well built, both good value for your cash.

Pick the one that looks the best when its that close

Edit : Some added criteria i use when choosing, besides the standard "whichever fits best"

-do both accept fenders front and back ?
-whats the largest tires that can be mounted with fenders installed ?
-can a rack be mounted on the back
-which has the best gearing for your route you intend to ride
-Which has the most braze ons and areas to mount water bottles, pump, batteries.
-which has longest chainstays for heel clearance with a pannier