This is the first Tier List after the Balance update and Cybernetic Rebellion.
Six Sams and Blue-Eyes are by far the Best decks. (BLue-Eyes is a great call because Subterrors are basically dead and they have a good Six Sam match-up)
I think the Tier List will shape up like this, because Six Samurais wins against Tiers 2 and 3, but has a disadvantage against Blue-Eyes, so Blue-Eyes is tier 1, having balanced / favorable matches in different situations.
Six Sams are the strongest deck now. They were a big contender before and were left completely untouched by the banlist.
There are four components for a strong meta deck: 1) Draw Power 2) Search 3) Easy OTKs 4) Control Pressure. Six Samurais are a complete package.
Despite still being strong, Ancient Gears do not benefit from the uprise in Six Samurai users. Loading... is also a very common main deck card in many decks right now. If these trends continue, a slight decline on Ancient Gear representation is foreseeable.