I think the paulson racks look nicer if you’re going to have chips visible/somewhat on display.
However, I prefer the justin racks since the weight is taken off the chips. They interlock, so a little more stable but for in house transport not really a big plus there.
I’ve seen a few different posts that stacking paulson racks doesn’t affect chips - like the famous WSOP 20 racks high pic, but also seen a few images with flat spots. If you’ve got expensive chippies, not worth the risk IMO, but I’m sure there’s a lot of folk who’ve stored like that for years with no problems before justin racks were a thing.
I still use both, justin for storage, paulson racks for game time/ buy ins etc. Also, if you do plan to take your chips as a guest set out of the house, justin racks are great for that.