I already made this suggestion in another thread but as it is in AD i think most people won't notice it and i'd like the idea to be discussed. Apologies to anyone who might stumble over it twice.
Many people complain this round's stats are very unbalanced, Xans are too strong, Zik/Cath are too weak. Others defended the current stats. It's been stated several times that the weakness actually lies in the uneven distribution of races. Xan are mainly doing so very well because terran is the race picked by most players and their main threat Cath is badly under-represented, while Zik/Cath fleets would have an easier time attacking if targets had to deal with more Cr incomings overall, that is, more Zik/Cath in the universe. With the current round i guess everyone can see what will happen next round: many frustrated Zik/Cath players will choose Terran/Xan and ppl who have not played Zik/Cath before are even less likely to change to them.This is assuming the stats are unchanged or just slightly changed ofc.
Now ofc you can change the ship stats which will result in different weaknesses/strenghts of each race and probably also change the race distribution, but you'll never be able to predict the outcome. As long as the balance of the stats depends on roughly equal race numbers (and it will always do if you keep the scissors/stone principle as Sid put it so nicely) it can always result in a total messup.
Another way to go might be to actively try and get a more even race distribution. How to do that? An idea: Buddy groups are already in the game. If you ensure races are more or less equally distributed within each group, they will be roughly evenly distributed among active players. So, force a buddy group to choose 3 different races! Even better: change to a system with groups of 4.
Now i know this adds an element of force which most players won't like as probably not everyone will be able to play his inital pick. But maybe if you think of other games: A football team with 11 scorers won't win a match, a tema with 11 goalies won't either. So if you take a group of people and form a team not everyone will have a free choice of what position he plays. Also, you can always play the race you want, but you might be penalized by not having a buddy group, which will reduce your chances of having a (semi-)decent galaxy.
Speaking for myself: With the current universe i see choosing Cath as one of my main mistakes (right after not deciding to play early enough to get a decent buddy group), without a major stats change i won't pick them again. However, in a setup like i suggest i will gladly take the part of Cath in a buddy group.
edit:
Might happen that people who are willing to play the less "popular" races are more sought after, allowing them to choose a group from different alternatives (didn't you always want to be in the "HC galaxy"?
). That will be an additional incentive for races that are deemed as weaker now.