My 2 cents worth:
1. The Watchtower was founded by freemasons (see CTR's memorial, early literature) even the CD-ROM mentions having meetings in masonic halls.
2. They have "New Word", or "New Order" on just about everything. Hitler also used the term "New Order".
3. NWO theories point toward a one world government. Watchtower theory points toward a one world government under Christ.
4. NWO theories believe a cashless society will be here soon. Many Christians believe a cashless society is/could be the "Mark" in Rev 13 if certain aspects match Rev 13. It's obvious that a cashless society will be here within 10-20 years, if not sooner. The Watchtower denies the "mark" is anything literal, rather they claim the "mark" is symbolic and has been here since the early 1900s.
5. Not sure if it's related but there's creepy satanic subliminal drawings in Watchtower literature.
Some have theorized the GB is controlled by masons?