I get to ride in C-17's and C-5's once or twice a year. It was super exciting the first time I got to ride on them, but now the most exciting part is getting off after landing lol.
I also have flightline access at Buckley, Vandenberg, and CCAFS. I've been pretty close to the CO ANG F-16s coming and going at Buckley and at Vandyland I've seen a few different drones, C-130's, CA ANG F-15C's, and just a few weeks ago I got to see my first Atlas V delivery via an AN-124.