Given your selections, I'd choose the Edge.
While I do see the value of a larger tarp for a new hanger, I tend to agree that the best way to become proficient with a tarp is to require proficiency. You learn tarp skills pretty quick when you start getting wet due to poor setup. I don't necessarily think folks should start with the napkin tarps (OES Micro, HH Asym, WB Diamond Fly, etc.), but a nice 'in-the-middle' tarp is a better option for both coverage and education IMO.
The issue with large tarps in densely wooded areas is mostly
about the ridge length. You can always pitch a wide tarp steeply and fit it just about anywhere, but you need the distance between trees to be enough, cause you can't really fudge that....much.