title_body: Is there a site (or app) like Beer Advocate that lets me give just an overall rating?
upvoted_answer: RateBeer is the other big rating site.  It also has a 5 point rating system but you can also just "tick" beers 1-5 stars, which may be helpful for you.
  
  There's also Untappd which is pretty popular.  It operates more on a 4square-style check-in system and has a lot of social features as well as badges for various types of beer, origins, location, timing, etc.  But their rating system is a simple 1-5 stars with an optional notes field and location tagging.  They also include a recommendation system but it doesn't take locality into account making it largely useless since the majority of the beers they'll recommend are impossible to find in your area.
  
  There are a few smaller ones kicking around as well.  A buddy of mine did littlebeerbook.com, which is fairly up your alley based on the description.  However it's pretty rough on mobile, and even outside of that the User Experience isn't the best.  Work is being done, but it's slow going with day jobs and families and all that.  So if you don't mind the interface, it'll track what you want pretty well.