You trying to stay in Hoboken or Jersey City? Be sure you know how late PATH runs and be aware of schedule changes. It's not a bad way to get into the City, though. (My friends and I used to regularly park in Hoboken and take the PATH in when we were in high school.)
Staying somewhere like Fort Lee, Teaneck, East Rutherford, or Leonia gives you bus access (check the bus timetables at njtransit.com) with probably the shortest ride, but almost every Bergen, Essex, Hudson, or Union County town will have daily bus service to the City. (Pre-car and pre-kids, I used to say that on NJ Transit, you could get to the City or you could get to the mall, but trying to get anywhere else was next to impossible.)
When checking trains, please be advised that certain station stops don't run year-round - like the Montclair State stop near Little Falls only runs while Montclair State U is in session, for example, and weekend service on the Bergen Line has been limited in the past.
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Liz
DD (3/2010)
"Make mistakes! Get messy!" - Miss Frizzle