I'm just curious to hear what guys opinions are of updos.

Like most other ladies on here I love the beautiful updos I see and I like to do the ones I can and look forward to being able to do more as my hair grows. But I'm just curious to know if any of the guys appreciate the different updos or if they all look the same to a guy, or if guys prefer hair down. So can I get any thoughts/opinions from guys or from ladies who have asked the guys in their lives?