2 6 win seasons, 1 5 win season, another 4.7, and also one 3.4 in 104 games. Obviously elite could be viewed differently by different folks but I'd say he had at least 2 elite seasons and 2 damn good seasons, and another 2/3 of a damn good season. Quoting myself but Fan Graphs has a chart where they rate 4-5 WAR as an All Star, 5-6 WAR as a Superstar, and 6+ WAR as MVP level production. By that measure which all may not agree with then Jed is right and Heyward has been pretty damned elite. That is 2 seasons in the Superstar/MVP range, another at the AllStar/Superstar range, and 2 more All Star seasons if you assume his 3.4 WAR in 100 games would have carried him to between 4 and 5 WAR.