These 2 albums are considered to be Stevie's best, "Songs in the Key of Life" (1976) and "Innervisions" (1973), however they were not consecutive.Interesting that Stevie Wonder hasn't been mentioned. He had three consecutive albums that won the Grammy for best album three times in four years.
In between, Stevie released "Fulfillingness' First Finale" in 1974.
All 3 albums are considered masterpieces.