Whatever you use to match-up servers
Quite a lot of matches are bad, but that’s not the fault of the match-making,
that’s the consequence of league and it’s WTJ-transfers.
If there are no 3 servers that are balanced (or if they are missaligned in the 3-way matches) there are no good matches, whatever match-making you use.
And any league ANet makes only increases imbalance.
Ceterum censeo SFR esse delendam!
I agree with the op (but not disagreeing with Dayra). There are better ways to make the matches.
Sure there are imbalances but that is a different issue. If Anet isn’t going to do anything about the balance then at least they can do something about the matchmaking.
If you’re going to be in a unbalanced matchup, at least vary the unbalanced matchups a little.