From what it sounds like, the OP cannot go wrong with either of the two main choices he made. Since he doesn't sound intent on racing it, he should be more concerned about the ability to mount racks and fenders on the bike, and otherwise, as long as either choice fits and he likes the ride, the Giant and the Kona will both work for him.
My advice to the OP: ride both bikes, see which one feels better, and then buy it from a LBS where you can be properly fitted to the bike.