Personally, mine was the transition era. Beating UConn for our first 1-A win in 2000. Taking out Pitt on the road in 2001 for our first signature 1-A win. And then beating our first ranked team (BGSU) in 2002. Exciting time. Marquel Blackwell, Hugh Smith, DeAndrew Rubin, Huey Whittacker, etc. I remember feeling like we actually belonged more and more after each of those victories.
Of course the Big East era, CWT, & now CCS eras have all had their great moments as well