For a beginner quilter a crib or lap size quilt is the best.
I would never suggest any bedsize quilt for a beginner.
Start small, learn proper tecniques, learn the importance of the 1/4 inch seam allowance, and proper pressing. Be sure to square your pieces as you go so your finished blocks will be square. If you start with too large of a project for your first quilt you maynot get a 'good' finished quilt, wasting a lot of fabric, also easy to get discouraged with a large project.
I believe a lot of beginners make the mistake of starting with too large of a quilt. :thumbup: