Jump in continues to be the gold standard for me.
I've played all the digital card games, and for me the simple cycle of do daily, play jump in, build collection, play ranked is just perfect.
I've managed to build a good collection, a deck for standard and Pioneer over the last year and rank up decently.
Final fantasy pairings have already given me some new cards to pop into decks and kept the fun rolling.
Just shouting out the arena team for understanding a simple daily on boarding cycle leads to player progression and enjoyment.