They also need to cut down the number of "upgrades" that minions get; what I mean specifically is that people just don't want to put ALL those points on minion upgrades JUST for the minions, when there are so many other good powers they need/want. 

So lets say for an example: it's possible to put 6 points total in minion upgrades; instead, they just make it 5, or even 4, but make each upgrade give more bonuses.  That way, people are WAY more likely to put points in the bottom row of their skills.