I tried several games during peak hours. The top bracket has been nonstop premade farm fest. Even my 5.5k GS alts get bumped up to the top bracket sometimes. This is probably due to the number of premades waiting in queue. Eventually I found a match worth staying in:
https://youtu.be/cZ03CjkMWK0
As of now, casual donors are at a huge disadvantage in BG's due to the new bracket changes. As a previous poster said, donating for gear just means you will get farmed by premades. This seems undesirable as it discourages people from donating and supporting the server.