^ Thank you very much for the information, HkCaGu. This is my first trip to Guam so I am not familiar with its layout aside from Google maps.
Based on your input (esp location), I will book the Grand Plaza. There is a Thomas Cook coupon code for £30 off 2nts which will make it ~US$53/nt all in. See hotel deal codes thread.
I emailed Grand Plaza re: wi-fi. It is a $5 charge for the entire length of stay.