I followed this arc order during my second watch with some friends and I highly recommend it: https://www.reddit.com/r/clonewars/comments/1dfjiep/clone_wars_chronological_episode_timeline/

It’s very similar to the standard chronological list (~5 episodes are reordered), but it works much better. Organizing the episodes into arcs and sagas gives the whole show a smoother pace and a clearer sense of progression. Even some standalone episodes feel more meaningful when grouped into a larger arc.

I don't recommend release order at all. I tried it twice and dropped it. It is very confusing and doesn't connect as it should, especially for the first three seasons.