This is a question that Pinstar and I get asked a lot and I thought I would make a guide listing all of the current expansion packs from worst to best for the Legacy Challenge. You can check it out here.
I am hoping to also turn this into a video, but I am not sure when that will be posted yet. Hopefully by the end of the week!
I would also love to hear how you would rank the expansions, so let me know in the comments!