I have an exe , and a friend has the rise m20 with the 360wh battery. we went for a ride last night, and battery use was pretty much identical throughout the whole ride - I used 2% more than he did by the end of the ride. This is the case on every ride we do - my exe battery use matches his nearly identically.
However out of the box ,using the default modes the bikes ship with, the rise has significantly better range, but that seems to be primarily because eco mode on the exe is set to quite a high level of assist, compared to the same mode on the rise which is set quite frugally.
if you turn the exe eco mode down to feel roughly the same as the rise eco mode (which for me is assist at 60% and max power at 190w - although max power is less relevent at a low assist %), then they both seem to have about the same range.
The other two modes , mid & max on the exe ,and trail and boost on the rise seem to be largely similarly configured out of the box, except that the rise has 350w peak, wheras the exe can only do 300w.
On really steep hills where max/boost is used, he will pull away from me, due to the extra 50w the ep8rs can manage.