Auto Balanced Collector Group vs Failover?

If you have collectors in different regions, you would want to avoid Auto Balanced. This would be more meant for traditional failover. As with traditional failover, your devices will be monitored by the collector you pick, generally the closest. But if something were to happen to that collector, the back up would try to take over.

With Auto Balanced, while yes, the other collectors try to take over when 1 is down, you can end up with a collector with a horrible connection being the main collector. Auto Balance only works off of instance counts, and only balances when that threshold has been exceeded.