使用varchar（MAX）或varbinary（MAX）在SQL Server中存储长度未定义的字符串

I am making a CMS of sorts and, of course, it will have a blog. So, this might be a pretty noob question, but, from a database optimization point of view, would you use a varchar(max) or a varbinary(max) to store the body of a blog post?I am making a CMS of sorts and, of course, it w