My guess is that the '14 will feel faster, without being any faster. I figure the extra gear changes will offset the benefit of more gears, and it ends up being a dead heat.
I figure both Hemis will be mid 15s. Not fast really, but fast enough for something that is IN NO WAY DESIGNED TO BE FAST.
My beef with the V6 that it felt like it was struggling to lug around a fully equipped Overland. I figured that if I put a trailer behind it, more people and stuff in it, more elevation or incline on it, it just would be working super hard to move the vehicle.
The Hemi never felt like it was out of power. It felt like it had plenty more grunt to spare, and never needed to spin to high rpms to move around like the V6 did. It made me feel that I could tow, load up, etc. without having to worry about it.
I realize both would do this fine. But I also didn't want to have to spin to 4000rpm to get up a mountain road to get to the ski lodge because I was loaded down with gear and people.
The actual speed of the V6 IMO is acceptable. It's the feel that I didn't care for. I like the feeling of a pushrod engine with lots of low end grunt that doesn't need to spin up super fast to move a vehicle.