here is a comparison of the two 11th Doctors. One on the left is the series 5 sculpt. The one on the right is from series 6. I like the series 5 sculpt the best. the series 6 one looks to goofy to me. Series 5 one is perfectly smooth looking design too. Series 6 one? You don't want to know what I think.
Yes this is coming from a girl who adores Matt Smith.
But CO did a bad job on the series sculpt however. So in the end to me series 5 sculpt is way better then series 6.