To hear the two sides in the skyscraper war tell it, never has so much been at stake.

The owners of the Empire State Building and their supporters say their tower’s international status and New York City’s skyline are in mortal danger of an assault from a “monstrosity.”

Their rival: a proposed tower on 34th Street two avenues to the west that, according to its developers, will help the city grow and prosper, provide thousands of jobs and improve the quality of life for tens of thousands of New Yorkers.

What irks the former is that the latter would rise to be 1,216 feet, almost as tall as the Empire State Building, and would be just 900 feet away, a little too close for a building that has stood apart in the skyline for its entire 79-year life.

“The question here is: How close is too close to one of New York’s iconic landmarks,” Councilman Daniel R. Garodnick said Monday, after a hearing in which the owners of both properties made their cases, in advance of a City Council vote on Wednesday.