This comparison is an insult to Stanton. Stanton is a rare breed like Trout. Heyward isn't necessarily a dime a dozen, but he isn't a freak along those lines.
Aight, lemme end this with a KO right now:
Ryne Sandberg: 9282 PA | 4.05 fWAR/600 | 4.2 rWAR/600 PA
Chase Utley: 5128 PA | 6.32 fWAR/600 PA | 6.26 rWAR/600 PA
Utley has 1/2 as many PAs right now...thats definitely whats hurting his HOF hopes, but he has been clearly more valuable than Sandberg in his career. If he can get another 2000 PA (3 full seasons) of 4.5+ WAR rate, then he >>> Sandbage