Which pack is better for building? Snowy Escape or city living?

@TheSpaghttMouse I think which items/pack you prefer build-mode wise would vary depending on what your building preferences and goals are.

City Living has many items that would be appropriate to a big-city build/home home or business or build. It also includes many items that I use for other home and business builds that have nothing to do with a city setting. There are also vendor booths that come with that pack. It comes with many activities, festivals, various ethnic and special foods, a 'big city' world, various types of apartments, and more. Please go to this link and scroll down to the "Show" drop-down menu sort and choose from it "Build Mode Items": https://www.ea.com/games/the-sims/the-sims-4/pc/store/mac-pc-download-addon-the-sims-4-city-living

If you enjoy Oriental style furnishings (though there are also Oriental items already in the game... but this pack adds more), vacation and resort items, and ski activities and items, you may prefer the Snowy Escape pack. For some reason on EA's site I don't see Build Mode items on their page for this EP, so please go to the Origin page below:
https://www.origin.com/usa/en-us/store/the-sims/the-sims-4/expansion/the-sims-4-snowy-escape#store-page-section-contents
...then scroll down until you see "Build Mode Items"...

 
Then make sure to click the "Show All" button a bit below that area to reveal all of the "Build Mode Items" in that pack: