My OH has no sense of aesthetic at all so would never venture an opinion on a particular item of clothing or haircut. He tells me when I look nice though. I even buy his clothes as he hates clothes shopping so much. It would be nice for him to be more into stuff like that so I could bounce ideas off him, especially when decorating the house, but on the plus side there are no clashes and I get it all my own way.
For other stuff like parenting, friends and life in general I do respect his opinion and he respects mine. We're fairly similar in most respects and can have civilised debates on stuff we don't agree on, although we agree on the essentials anyway.