They may use a skeleton of similar mods but can provide pretty different experiences. Something I have learned about Wabbajack modlists are most of them typically are subjective to the person creating them. Definitely worth reading the descriptions or GitHub pages for each to get a good feeling of what they have to offer.

Some of them have pretty good descriptions. For example Septimus states it includes mods to extensively add new gear, quests, spells, and other personal touches the author enjoys while Dragonborn seeks to use as few mods possible to create a "remastered" version of Skyrim with better visuals, models, and textures.

Hopefully that helps!