I have been quilting for 15 yrs and my favorite block is the one I have pictured.
I got it out of a magazine a few years ago. It is a white on white, and a black floral. What I love about this pattern, is how you take a color from the black and use it as the accent color. I have done this block a couple of times and will probally do it again, if I can find some black floral I like.