A while ago I posted a request for butters. After listening to reports, I tried a bunch of the locally available unsweetened butters. Results:
I remain firm on my favorite spreading butter being Danish Creamery. It has a light, soft, sweet buttery tang that goes beautifully over breads, muffins, etc.
I have, however, switched my cooking butter permanently to Plugra - cheap-as-grass (real grass, not "grass") at $2.50-ish at Trader Joe's. Plugra is a cleaner butter - insanely good for all the vegetable sautees, omelettes, whiskings-into-reductions. More of that bring-out-the-natural effect. It is, however, a little to clean, crisp, and blank for my tastes as a spreader.
This time of year, kosher grocery stores have imported butter (with a hekhsher[certificate of fitness]} from Deux-sevres/Charente in France. This is great butter. I'm pretty sure you can find it at La Brea Market at the corner of Oakwood and La Brea. You might want to ask them if they have the French butter when you get there.