It`s quite easy you find a band, then divide how many albums they`ve recorded between the number of years from their first album to the present day. Let`s name & shame these lazy bastards.
A band that has split up doesn`t count , so no you can`t have My Bloody Valentine
The laziest band I can find is The Blue Nile...
1984 - A Walk Across the Rooftops
1989 - Hats
1996 - Peace at Last
2004 - High
Thats 4 albums in 22 years making an average of 5 years 6 months between albums.Which is even more than Guns n Roses (5 years per album)
Anyone find someone even less prolific?