Which songs have been covered by other artists but are better than the original?
Man Who Sold the World - David Bowie; Covered by Nirvana Nirvana's sound just sounds slower. The song really sounds like a slow song, not a fast one like how David Bowie did it.
War Pigs - Black Sabbath; Covered by Cake Black Sabbath's sound is loud and metallic. Cake's is soft and smooth. Even though War Pigs' lyrics are dark, Cake does a great job.
Never, Ever Gonna Give You Up - Barry White; Covered by Cake Barry White's voice leads the melody, and I don't really like songs like that. Cake backs up the voice with instruments.
The Guitar Man - Bread; Covered by Cake Both are good, but Cake just sounds better.
I Will Survive - Gloria Gaynor; Covered by Cake Both are really nice. They are equal.
There is no way that a cover is better. You may prefer it more, but the original is the way its supposed to be played or it wouldn't have been played that way.