I take it you're referring to the remake? I prefer the original to the original.
The Virgin Spring (1960)
http://www.imdb.com/title/tt0053976/
Last House On The Left (1972)
http://www.imdb.com/title/tt0068833/
Last House On The Left (2009)
http://www.imdb.com/title/tt0844708/
The Virgin Spring is set in 14th century Sweden, so already the set design and cinematography is all the more vibrant. On top of this, the film isn't fueled by exploitative violence, but rather the suggestive themes and powerful directing.
I enjoyed both the two remakes that came subsequently after. The first had great shock value- especially when it came out in the early 70's. The 2009 remake is completely an exploitation-revenge film, but im okay with that. I enjoy gore, etc.