Hmm... out of the ones on that list orach is my favorite. They are really easy to grow, slugs leave them alone (which is great in western WA!), and they self-seed really easily. Plus I like that they can provide greens starting in spring and continue through the summer heat even when they have flowered. They also look really nice--they can be red, purple, green, or a yellow green color and get nice and tall but don't fall over easily. Growing them along the back of a garden just looks really nice. Or you can grow them scattered throughout since they don't get very wide for some nice variation. Just a fun and easy vegetable to grow.