I would HIGHLY reccomend booking your travel as a group. As i have stated in previous threads, hotels, flights, tours etc over sell almost 90% of the time. if you go onto trip advisor right now, you will read of several complaints of hotels over selling other hotels and being put at the Now Jade. If you want to ensure that none of your group will get bumped in that event, I would definitly reccomend booking as a group or at least getting blocked space at the hotel.
Also, you may get a discount if you book as a group and get a certain amount of people to attend!!