I have two front hubs (Mac, small Golden) and can't see any problems between f/r. I learned from my first install. The Bikes Direct hybrid had an aluminum suspension fork, which is not good. So I bought a Surly fork, overkill, but it looks tough. The other bike I bought because it had a steel fork, though the bike was cheap. Both have the very adaptable Grin torque arm. The Mac is troublesome with disk brakes, the Golden less so. I miss the suspension fork which smoothed out mildly rough terrain.
Aluminum is not supposed to bend before breaking, unlike steel, so steel can be inspected. Steel bikes with good torque arms are reassuring for hub motors, front or rear, but a front fork of steel solves that problem.
I mostly ride a rear hub, the big Golden. That's mostly because of the front suspension, but it also ends up fitting me very well, and has a step through low bar frame. It's easier to change tires on the front hub. The front gives you all wheel drive, in a sense. The front can give a feeling of pulling you through a turn. If there is little weight in front, the starts can be more difficult with the front wheel spinning out.
A front hub with a controller in the wheel makes life simple, especially something thin like the Goldens with few brake issues. Since I had the steel fork and used a rear rack battery (generally more balanced with a front hub), the install was very simple. That's my member photo deep discount cruiser. In many ways it is the most casual and satisfying to ride since I never push it. It works only because it has a motor. Without it it is a torture machine on any grade. You can't stand up or really leverage the pedals in any way. But with a motor it's fine. Motor change things, for me, so I would buy a very basic bike, put a motor on it, and just love it death. Throttles mostly, speed control...