duh,
that 2nd map could be very well balanced, but it depends a lot on how you place the bases.
One country might end with e.g. 4-base wide front and other with 2-base wide front. If you use island to overcome that possible problem you could be clear.
IMHO it is always good to look at the base layout without land or water/map to check the balance issues.
Making a triple pie on a square area is not always easy. I would begin with drawing a circle and defining its center, then defining equal 120 deg pies and placing HQ somewhere at the back (at the circle) at about equal distance from eachother and from the circle center.
That is how I have been trying to pre-plan a MA map
