Also, the change in Pavonia/Newport is going in the opposite direction. I definitely agree with other posters to stay near Pavonia/Newport.
Originally Posted by
Analise
For ease on the PATH train, stay at at hotel near Pavonia/Newport because you will only need to catch the 33rd St PATH train to/from 33rd St. The hotels at Exchange Place require you to change trains at Pavonia/Newport. To me, changing trains isn't a big deal but, then, I grew up taking public transportation.

You just need to make sure the train you're boarding is the one you want. If you're traveling on a weekend or late at night, not having to wait for a second PATH train might be a plus for you as the trains run less frequently than during the day.
As for cost, the PATH is one flat price...$2.00. You'll need to buy a PATH card at one of the machines.
http://www.panynj.gov/path/fares.html