Boosts and AW Defender Rating
By now everyone has figured out to place 150 diversity defenders across battlegroups and that wars come down to defender rating and defender rating only with both groups easily 100% clearing. That's how it is in any tier 1 war and most likely tier 2-3+ also.
Everyone should have figured out by now that masteries increase your defender rating so that placing your defenders with suicides is a huge factor in determining who wins the war. But something different that was not present in pre-15.0 war was BOOSTS permanently affecting defender rating. Now if you use a boost, your defender rating will be permanently boosted when it comes down to score. Not sure if Kabam is aware of that or if that is on purpose, but boosts should not be increasing your defender rating score after they wear off. It is coming down to how many players on a team will throw up boosts on their defenders right before placing. It's a system that could use a lot more work than this suggestion I know, but this is just one suggestion now that can improve the current system a little bit.
To conclude: Boosts are permanently inflating your defender rating score (for that war) even after they wear off. The winner of the war is determined by how many players place defenders with suicide masteries + how many boosts they chuck on right before placing. Boosts should not increase the defender rating score you get.