Julie,The reason i'm thinking of getting a mid drive bike is not because of the motor (I have no idea which is best) but because of the familiarity of the components, for example:
Shimano XT gearing, i've been using this on my mountain bikes for at least ten years, i know it pretty much inside out and can adjust and replace as necessary
Hydraulic Disk Brakes, some have Shimano XT hydraulic disk brakes, which i have also used on my mountain bikes for many years, its super powerful, and very reliable,
Do any of the hub motor bikes have components such as these? I really like the idea of being able to do my own maintenance and repairs, its something i'm comfortable with and confident about ( I would not do any work on the motor though, i know nothing about those)
Another thing i like about the mid motor bikes is the wheels, if i damage the rim on one i'd just get another wheel, swap out the bits and i'd be back on the road, but if i were to damage a wheel that has a motor on it i don't know how easy it would be to put the motor and on a new wheel, or if the wheels are readily available at local shops.
Also, not having a quick release wheel on the hub motor bike could be quite inconvenient, I know its not hard taking of the wheel of a hub powered bike, just disconnect the cable and unscrew the nut, but if its 5 o clock in the morning, pitch black, pouring down with rain and i have to replace an inner tube, i think the simplicity of a quick release would be beneficial
For my use, the only benefit i can see of bikes with hub motors is price, but maybe i have overlooked other benefits?
I'm not criticising hub motor bikes, i'm sure their brakes and gears and wheels are good quality and are really durable, my preference for XT is based on my familiarity, i'm not saying it is a superior system
You have certainly identified one of the big pluses of a crank drive bike.
Either side of the bottom bracket, they are an ordinary bicycle.
Which, as you say, is a big benefit from a care and maintenance point of view.