MTG Salvation

Hello there! I’m posting this to get some advice on a “competitive/optimize” deck. I’m mostly a casual player but everyone in my friend group has a deck or two with a turn 3-5 win condition. I’m looking to build my own but I can’t decided between Elves, Cats, and Elementals as I’ve enjoyed all three over the years. For Elves I’m going to run old fashion elf ball, but for the other two I’m not sure. In the past I ran cascading and/or landfall elementals, while cats were token/artifact. But with the return to Zeneikar and the new cat dual types from Lair of the Behemoths, I’m not sure what new and improved mechanics are available now. Mostly just looking for pros and cons from anyone with experience with these sort of decks.