TCNJ has a very strong education and educational research department. They also have some cool tech (what ever computer science is called now) programs. It's also nominally hard to get into, kinda. The #'s are distorted because Rutgers now lumps all their "colleges" together for each campus. You used to have to apply to Rutgers College (LA), Busch (ENGINEERING), Cook (AG), Douglas (Women's Studies?) and Livingstone (the others.....). Traditionally, Busch and Rutgers were harder to get into than the others.
Rutgers has waaaaay more options and is probably considered the superior school academically in most fields other than education though. Rutgers also has way more name recognition outside NJ. TCNJ rep probably extends 50 miles.
With all that being said, I find it fascinating (and frustrating) that 22 current NBA players went to HS in NJ. ONly one of them, Dahntay Jones, went to Rutgers and even he transferred out after two years. On an incredibly unrelated side note, I played a lot of basketball until my ankles gave out. I have only been dunked on three times in my entire life. One was by a 6'8 dude that looked JUST LIKE Ronny Seikaly, Billy Granville who played LB in the NFL and Dahntay Jones. He was in 8th grade, I was a senior in HS.