From behind the curtain in Canada, we have to teach what is called the "vertical take-off" for situations with no space for acceleration, and the "Towering" when you have some space. That is put forth in the Flight test standards, so that is it. However, I agree that the Vertical route is more comfy, since you can always go back into the hole you left, even if it may be a somewhat hard landing...
In the states we thaught the Max performance route, which I found slightly different than the towering. Here you don't have to use all power to get out, sufficient to get you going is enough, as long as you got enough. I personally like that better, but still better is the vertical departure, since you don't have to do a quick stop or rapid deceleration in case of those pesky warning lights.
Don't know if that is of any help but...
