Recently Scott and I stopped by Potted in Atwater Village on the way to Costco. 

Even more recently we stopped by the new Rolling Greens on Beverly near the Grove.  Potted is a little smaller and funkier.  Rolling Greens has an amazing space (a former auto body shop that I knew all along would make a great retail space).
Potted has a large selection of fountains where Rolling Greens seems to have the largest supply of fake succulents I have ever seen.

Potted is a bit more colorful retro whereas Rolling Greens is a bit more whitewashed shabby chic.  In any case, I think Potted is more my vibe, but both are great sources of fun plants and garden accessories.  Who would you vote for?