Disagree with Ninetales GUR being in tier 3.
I've played close to 300 games on PTCGO since GUR came out and it's by far my most consistent deck.
In my experience, the only 3 tough matchups for Ninetales are
- Rainbow Force Xerneas 40/60
- Vespiqueen 35/65
- Metal Decks, 30/70 against Sogaleo/Metagross, 20/80 against Scizor
As for the MetaGame,
- It can outspeed turbo dark decks with aqua patch and 1HKO them with choice band. 65/35
- Without Sudowoodo and rescue Stretcher this will be a 20/80. But I run one copy of each in my deck as it's 60/40 so far.
- The deck is tanky and isn't over reliant on items so it's not terrible against Plumes Variants. Plus RoughSeas can mitigate the attack from FeatherArrows. 55/45 against DeciPlumes and 50/50 against MantisPlumes.
- At 210hp, Waterbox/Lapras will need Kukui+Choice Band to 1HKO it but it can 1HKO lapras with just a choice band. 70/30
- Volcanions are faster but Ninetales has the type advantage plus it isn't reliant on abilities so you can hex them. 60/40
- MMewtwo and MGards hits about as hard but is less consistent since they require spirit links. 65/35
- Slyveon GX is terrible against anything that is versatile and can hit hard. 80/20
- Lastly, against Garbs variants, which is like 50% of the decks on PTCGO now. Vulpix's Beacon attack can search out pokemons with no energies and it's just an awesome attack to avoid using items/dealing with dead hands(searching for Shays/Leles). Iceblade is good for sniping out garbs and avoid hitting Tauros until you have a choice band to 1HKO it. At 210hp, Dramps/Tauros can't 1HKO Ninetales but Ninetales can 1HKO them. Espeon GX can be harder to deal with since Ninetales requires heavy energy attachment(usually 2 water and 1 colorless for setting up the next attack) + Espeon is faster + confusion can be tricky to deal with + Ninetails cannot 1HKO Espeon unless with Kukui.
65/35 against Tauros, 60/40 against Drampas + Magma SecretBase(Rainbow Energy is too slow), 40/60 against Espeon.
And needless to say Ice Path is one of the best GX attack in the game.
I play a mix of Garb/Drampas, Garb/Espeon, MegaRays, Lapras Waterbox, Turbodark and DarkDragon on PTCGO. Most of those decks hovers at a winning percentage of 60-70%. The only deck that has more than 100 plays with >75 winning % is Ninetales GX.
I will put Ninetales GX in tier 1.5 or even tier 1 just for how flexible it is in dealing with the MetaGame ATM.
PS: My first post! Let me know if the formatting is terrible.