I’ve probably never had the ‘real thing’; but even the Feta we can get here is Good Stuff.
There is a popular Mediterranean grocery nearby which sells many types of feta cheese. Greek feta is good, but a little hard. To my taste, French feta is the best, being as tasty as Greek but more creamy. Bulgarian feta is my next choice as it is some where between Greek and French, but with a little stronger flavor.