L-R . Revell, Academy and Hasegawa. The distance difference is just an illusion of the pic, what you are seeing in the Revell is the ventral stabilizer beneath the starboard wing. Both the Revell and Hasegawa match up identical as far as size.
The Academy seems just a tad smaller, like it is 1/49 or so instead of 1/48, not that you can tell from this pic.
UPDATE: Upon further review, the distance between the trailing edge of the wing and the front of the edge of the stab is 3/16 “ longer in the Hasegawa than in the Revell., or 9 scale inches (good eyes, Habu!) The Revell stabs are about the same amount larger than the Hasegawa.