What kind of yarn is the best for crocheting?

In worsted-weight inexpensive acrylic yarns, I recommend Lion Brand Vanna's Choice yarn. It has all the characteristics you stated. I have used it for scarves, hats, afghans, baby clothes, and trim, and it's easy to use, looks great, and comes in a ton of colors that all go with each other. a href="http://cache.lionbrand.com/yarns/vannaschoice.html" rel="nofollow"http://cache.lionbrand.com/yarns/vannasc…/a , a href="http://cache.lionbrand.com/yarns/vannasChoiceBaby.html" rel="nofollow"http://cache.lionbrand.com/yarns/vannasC…/a