Just moving around the city, I constantly see 'Syracuse' product: hats, T-shirts, sweatshirts, etc. I say the Syracuse "brand" is far more prevalent in the city than any other school. I do see a lot of Notre Dame, Penn State, and to a lesser degree, some Rutgers and St. John's gear but I still see a lot more SU merchandise in my travels.
Now let's be honest, that's probably more of a reflection on SU's large alumni base here and the b-ball/Lax programs' success more so than football, but in the end it all has to help in selling the 'Cuse to city kids. Branding SU as "NY's college team" was frankly a brilliant move and now you're starting to see the payoff.