I hesitate to post this, because several are going to think it's some defense of Ole Miss. But, placing a value judgment on 18-year olds as if they have fully formed personalities from which they make informed college choices is pretty silly. It's true that Ole Miss has well-established connections into TX, GA and other states based on the fact that those home schools have universities that have higher admission standards and won't accept them. But, that doesn't mean the kids are somehow vapid or constitutionally different in any way. State gets those kids too (on a slightly smaller scale) and would murder to get more of them.
Branding out-of-state kids who go to Ole Miss as "of a certain personality that we don't like" is extremely limiting and not based in fact, IMO. If State could open up a channel in DFW to bring in 400 freshmen a year that happened to be female and wealthy, that would be seen as a feather in the cap.
Also, it's hard to argue that UM is so snobby when State has a very large Greek system that is by and large identical to UM in the type of person that it produces, as well as the "quality" of that person while they are in undergrad. Read that to mean people who plan to join the professional class and see Greek life as a means to that end, and will tolerate a lot of dumb bullsh*t from those people while they're in school. Those things are no different, but always seem to be a distinction made by some folks here. I have heard as many terrible State fans as Ole Miss fans living out of state.
We were at the State-South Carolina baseball series and I saw a number of silly, loud and ridiculous State kids. We went by our old fraternity and there were plenty of douche-y bros in the parking lot getting their BORG prepped for that night's blackout, and plenty of girls dressed up like tragic fashionista rejects a la Ole Miss. We also sat in front of two State fans at the Friday game who started openly heckling the USC parents when we were getting close to 10-running them, and it wasn't heckling in a good-natured way. It was "go back to Myrtle Beach on your diabetes scooter" type stuff, which to my ear sounded snobby. But, that could just be me.
Finally, and this bears repeating, people who don't live in or too near Mississippi don't really distinguish between the two schools unless they have a reason to. Most of the folks that I met in CO 20+ years ago from the Midwest or West didn't know or care if we were the Mississippi State Rebels or Ole Miss Bulldogs. Plenty of people have asked me what years Dak was the Ole Miss QB.
TL;DR- the energy we waste worrying about how we're different is energy we could be using to show off our particular strengths. That's why I mentioned the Washington DC connection in a previous post.