Hi Videotrack,
The back catalogue of songs ABBA have is only second to The Beatles.
The vocals of ABBA are unequalled in my opinion especially when you put the two singers together.The production values are unmatched as well ,you can see this by the longevity of their appeal and that there have been no successful covers of their hits over the years.They were also ground breaking when it came to technology and still are.They really were the first group to use the music video as a way to get their music out,granted this was out on necessity as they didnt want to travel.
I particularly like the way that no part of the song is left to drift on ,there is a musical hook or an intricate harmony to keep the listener's attention.
Hugh