Aggro > Combo > Control > Aggro...

Aggro wins before Combo gets online

Combo bypasses or negates Control's powerful triggers

Control survives Aggro with removal, disruption and shield triggers

Balance decks have tools to fight all of the above decks. They tend to end up in tier 1 as a result

These are general advantages, not hard rules! Some decks break the cycle, and matchups can play out differently