I'm 6'3, so I kind of "get" the minibike feeling. I've taken demo rides on a Low Rider S and the new Fat Bob 114 and they both felt pretty compact. My Super Duke is a much rangier bike overall.
As for comparing/contrasting those two Harleys, I'd say the engines were fairly equal in power. The 114 M8 engine probably has an edge in refinement. The chassis are significantly different though. The Low Rider's Dyna chassis feels like it has a hinge in the middle somewhere. I rode an '08ish Fat Bob Dyna and thought it was trying to kill me. The new Softail chassis seems far more rigid and willing to corner. Better ride too from my limited experience on the bike, and the brakes are better on the FB to boot. Overall, the FB does nothing worse than the Low Rider S, and many things better. A clear win.