Am a little confused. It appears the upright V has more gain and a lower takeoff angle than the inverted V. Is the better impedance match of the inverted V more important?
You see it right.
The V is basically higher than the inverted /\...even though both have the same 18' foot high feed point for the two V models I posted.
Imagine the two V's stacked with the feed points together.
V
/\