I really do my best to * not * collect decks, but these are my keepers (or long term guests, at the very least):
Oswald Wirth (Editions de l'Aigle facsimile)
Flornoy's Dodal & Noblet
El Gran Tarot Esoterico
Tarot Balbi
Hadar / Jodo / Rodes-Sanchez TdMs
Grand Etteilla
& my old green Thoth, which stays in its box most of the time, but was my first love ...
Oswald Wirth: Editions de l'Aigle facsimile / Adam McLean's edition / Le Tarot Ideographique du Kebek
El Gran Tarot Esoterico
Tarot Balbi
Flornoy's Dodal & Noblet
Hadar / Jodo / Rodes-Sanchez / CBD TdMs
Grand Etteilla
Hexen 2.0 (which intersects with various other preoccupations of mine)
& my old green Thoth, which stays in its box most of the time, but was my first love ...