The phrase "a large advantage over" is correct and usable in written English.
It can be used when comparing two entities, indicating that one has a significant benefit or superiority compared to the other.
Example: "The new software provides a large advantage over its competitors in terms of speed and efficiency."
Alternatives: "a significant edge over" or "a considerable benefit compared to".
Magee has a large advantage over most of those who have ventured into this territory.
The author's expertise in military history gives him a large advantage over previous biographers.
In Indiana, former Senator Dan Coats is enjoying a large advantage over the Democrat, Representative Brad Ellsworth.
Mr. Cruz, who led by 11 percentage points with 75 percent of returns counted, is expected to have a large advantage over his Democratic opponent.
Mr. Cuomo has never had a large advantage over Mr. McCall among the diehard Democrats who are likely to go to the polls in a primary, especially older blacks and Hispanics.
Matchday and commercial revenues are arguably the most crucial factor in determining the expansionist capacities of ambitious clubs, and London holds a large advantage over the North East in this department.
The Conservative Party not only has the backing of wealthier funders, they changed the law late last year in order to increase campaign spending limits by a quarter, handing them a larger advantage over Labor.
In contrast, we found a large advantage for objects over environments.
Usually, grandmasters have a large advantage at that stage over low-ranked players.
As can be seen in Figs. 4(a)–(b), the proposed algorithm presents a large advantage on accuracy performance over the other algorithms, considering all the experiment configurations.
Behaviorally, there was a larger advantage of diagnostic over anti-diagnostic facial images when images designed to be diagnostic for a particular task were shown when performing that task, as compared to performing the other task.
