Sew-Alongs - but which one to choose from, and is it too ambitious to do more than 1 at once?

So, there's this one, courtesy of http://www.stitchedincolor.com/






or, this one, courtesy of http://www.thatgirlthatquilt.com/p/that-quilt-along.html




Let's see if I can commit to, and complete, a project that takes longer than 2 hours...

- Evelyn