There was a time when I would have been considered a 'hardcore' Star Wars fan- I loved every Star Wars movie, and thought George Lucas was a genius. He could do no wrong. Then came the Special Editions.....and the prequels. I was then in a position of only loving half of the Star Wars movies, and thinking I had seriously overestimated George Lucas' talent.
So, now I guess I'd be considered a "middle of the road" fan, since I don't like the prequels or the EU (I've only read 2 EU books and of those the only one I really liked was Splinter).
But, I still consider myself a hardcore fan, because to me there are still only 3 Star Wars movies and I'm a hardcore fan of those, and of the related memorabilia.