Quite frankly, and I'm not trying to diss you here, I'd just start over.
I've made several sets of stats that had fundamental issues like the ones I feel yours has, and that's what I usually do. Either that or I just give up.
What you've shown here is the easy part, the first 2, maybe 3 hours of stats design. If you get that "wrong" (opinion me), it's pretty hard to fix them, relative to the amount of effort put in already.
I can come up with some general things I'd like to see though:
* Every non-EMP roiding fleet should be out-inited by 1 defense ship, usually but not necessarily always ally-ETA. Offclass ships are great for this, as people won't want to build too many, and having roiding fleets counter each other tends to lead to one or two fleets reigning supreme.
* I don't like useless ships, though sometimes having a couple is unavoidable.
* 5 races: 4 races with 2 pods each reduces the number of teamup-based fleet strategies to 2 (Fr and De this round, De and Cr in this set) which hurts universe ship diversity. 6 races would be even better!