Fenway Park has 380 feet to deep right field but 302 down the line, for one.
Shea Stadium had 371 feet to deep right field but 339 down the line.
So we're talking a 9-foot difference in the power alley, yet a 37-foot difference down the line.
Let's go ahead and make the argument that more homers were hit in Shea in a year-to-year basis than Fenway, but you could also argue that it has a lot to do with the inferior pitching of the Mets themselves and the rest of the NL East during Shea's final years of existence.
You, ORS, my friend, seem to think that Fenway is the bane of power hitters, but i digress, even though straightway RF is murder for LHH's, it's a 9-ft difference between Fenway and old Shea, however, the difference down the line was much more pronounced in Shea's favor, destroying the potential for "cheap homers" and early pull shots, but hey, i'll admit my take on Shea, unlike AT&T was very subjective.