Thanks so much for your input, I'm thinking along the same lines as you in that the Rover would handle better on any off-road surfaces, and the mini be best as a comuter or light dirt path riding.  I do have a light trailer I can haul the Rover on so that simplifies getting it to parks and such.
Also how is the rover on streets as im sure I'd like to do some town touring just as much ad park trails??

new to this forum, just wanted some advise on making decision of which rad to buy, like the mini's size and folding ability, but wondering if its smaller wheel size makes it harder to handle on moderate off road paths, would the rad rover ride over light park trails better. Does smaller wheels make battery more or less efficient, given the wheel has to spin more to cover the same amount of ground. Any advise would be appreciated