I have all of Led Zeppelin's studio recordings and each has been my favorite at some time or another. Even though it is critized by many and often regarded as one of Zeppelin's weaker albums, Led Zeppelin III to me is actually one of there strongest. These negative reviews come mainly because of the bands accoustic leanings at the time, but that is really not a bad thing, since the albums still has it's fair share of rockers, and some of their best rockers ever, like "The Immigrant Song" and "Out On The Tiles". And not to mention, this album contains one of the best and most powerful tracks ever recorded in "Since I've Been Loving You". This is the true gem on this album. Never has Robert Plant sang with such passion as he did on this track. In fact, it is this album in which I feel Plant shines the most. His voice is in peak performance, and really adds depth to the songs, especially the more accoustic ones. Listen to "Tangerine" for example, and I think you will see what I mean. Overall, this album is essential in any music collection, and is a really enjoyable listen. It rocks out on tracks like "Celebration Day", "The Immigrant Song", and "Out on the Tiles". It has accoustic brilliance on tracks like "Gallows Pole", "Tangerine", and "That's the Way". Truly a Zeppelin masterpiece and a must have for any classic rock fan.