I have read where both schools are looking at leveling off around 14,000 to 15,000. Who gets there first doesn't really matter, if that is where they are both heading. Insofar as growth, UND had a huge graduating class last spring and increased admissions standards. With both of those factors UND still only declined less than 1%. Further, both schools need to have sustainable growth or they will both go back to having kids living in hotels. Not a good thing.
Size of school: Look at Auburn and Alabama. Auburn, I believe is the land grant school, is slightly larger than Alabama (main campus). Do you think that either school really cares? No, they are both great schools, just as UND and NDSU are. The schools in North Dakota, just as the schools in Alabama have different missions and different paths.
I have read where the most ardent NDSU supports are totally enamored with Chapman and the job that he has done and laugh at UND with Kupchella. I happen to think that Kupchella has done and continues to do a great job for the U. Look at all of the great news that has come out in the two week regarding UND. He clearly is doing something right. Keep it up President Kupchella.