The only franchise that comes close to my love and knowledge for Pokemon would have to be Yu-Gi-Oh. Been playing since its reception, but haven't picked up a deck in just about a year.
My absolute favorite archetype were the mighty Sylvan plants. Loved their defensive playstyle that my friends could never seem to chop all the way through so losing usually meant getting decked or put in a bad loop.
Also seen the first three anime series (Original, GX, 5Ds) in their entirety and particularly loved the fast-paced action of 5Ds, although dueling on a high-speed bike sounds so unrealistic haha. Seen a few episodes of Zexal but not enough to catch my attention before I put down the cards for a bit.