What a fun topic for a discussion! 
My favorite decks at the moment (and it does change depending on the moment lol) are:
-
Anima Mundi - review with more pictures here
A very hardy nature-based deck that does not pull any punches- it will tell you exactly how it is. -
Mystic Manga
A fun and colorful deck with pictures that, although sometimes different from the traditional RW deck, are loaded with symbolism that helps with interpretations.
I also have the Deck of Oppositions (full review here) but it has a rather steep learning curve and can be tricky to use in practice.
The Ostara Tarot (full review here) is beautiful from an art-perspective, but the mixed styles don’t suit well for readings (imo). I have it on the shelf but don’t read with it much anymore.
I got the Soul Cat Tarot and I love the artwork, but it’s also not a deck I usually reach for to do readings.
Thank you for opening up this discussion, @SpanishWitchy- I can’t wait to hear (and see!) everyone’s favorite tarot decks 
