I started with a Centennial RWS but switched to Modern Witch. The RWS imagery was stressing me out and I needed something calmer. I do keep a pocket RWS around for comparisons though. If a deck has the same majors, suit names, and court structure, you’re basically still working with RWS.
The court cards trip a lot of people up but they’re not really all that complicated this thread explains it pretty well: Page cards confusing - need help understanding them Just use whatever deck you actually want to pick up. You can always compare cards between decks to learn the RWS system.