I prefer his hair short like it was in The Guardian. I saw it on Saturday and it was the first time I ever found Ashton even mildly attractive.
I had found him extremely annoying before, probably because of Michael Kelso and his "punk'd" personna, and how he always plays the part of a 12 year old stuck in a 20 year old's body.
He still looks rather young and boy-ish for 28. I don't know what his preservation secrets are. I think in 5 years if he finally manages to transition from "boy-ish" to "manly" I will find him gorgeous.
Until then he remains mildly cute and potentially handsome, with an unfortunate dose of annoying, at least in my eyes.