Embassy Suites gets my vote after 12 years of going there. Excellent quiet and spacious rooms and V few NetJets Guys nowadays. I have nothing at all against NJ, the only prob with NJ is that they used to dominate the free shuttle to FSI/Teterboro and sometimes one had to wait for it to return again.
If your company can run to a Rental Car, you are quids in.
If Manhattan is your bag, hop on the (every 20mins) buses that stop right outside the hotel and go in (25 mins drive) will cost about $6. Throws you out slap bang in the middle.
As previously posted, Secaucus has every restaurant you could desire (Outback steaks, and Hoolahan's buffalo wings mmmm!), and if you fancy a night in, walk to Wallmart and buy some excellent grub to cook and eat in your room.
The free beer (if you can call it that!!) from 6pm to 8pm helps also!
Enjoy, you're going to have a great time (and some excellent training).
Jez.