I don't know how old the O/P is, but I can also tell you that "older" guys tend to drive GM's and Ford tends to appeal to younger guys. NOT ALWAYS, but in the majority of cases.
I think there is a marketing strategy here that is plainly obvious. Fords look like "lifted" trucks. They sit higher, they have big spring perch blocks and taller tires. 99% of their buyers will never need the axle articulation or fenderwell clearance Ford offers. They look baaaddd. I think this appeals to the younger macho, lifted truck guys. I was one of those guys and that used to really appeal to me, too. OTOH, GM's sit lower allowing easier ingress/egress and loading/unloading (hence less need for the Ford tailgate step).
Now that I'm an older "tough-guy" little more gray hair, but more wisdom, I appreciate the lower step height, better ride and the better/more reliable, more gears drivetrain with longer warranty. I also like to drink my coffee without wearing 1/2 of it. I like to step out of my truck, instead of jump out of my truck. My little kids can get in/out of my truck without rolling an ankle. I can get my tools out without a step ladder, yet I can still handle the typical off-road situations I see on the jobsite, some snow, etc. You have to ask yourself "How many times will I need the Ford's off road capability, and will this offset the advantages the GM has" ?
I think is what it boils down to. Ford also has a towing capacity advantage. The more I understand/read however, the less this advantage really is.
Most Ford guys would never be able to use the Ford's capability off road. Clearance wise-Ford beats GM. However, my GMC's locking rear would beat my Ford's feeble l/s in off road slippery situations. Also, my GM SRW rear is just bigger & strouter at 11.5". Fords would be better at clearing logs, creeks, etc. If I have to drive through relatively level slippery situations, with the same tires, the GM will beat the Ford easily because the rear in these HD's is an off-roaders dream. The IFS tends to hug minor-moderate imperfections in the ground while Ford's SFA will lift one tire in the air. I don't do all the sexy off-roading you see in the kids magazines. I do my off roading in snow or on a muddy building lot, to get firewood, drive across fields, etc., so Gm is actually a better truck off road for MY particular off-roading needs.
As you get older, have kids, etc., the GM's are more appealing. You become more conservative and less likely to be driving across rock-strewn gorges at 25MPH and more likely to spend most of your time commuting to work, towing a trailer on road and maybe doing a little 4x4 work off in the weeds, light mud, etc.