We’ve always booked on Orbitz other than the two occasions we’ve come on a referral. For us, the air and hotel packages on Orbitz have always been good to us…especially if you can be a little flexible with your travel dates and book ahead a couple months.
We looked on a lot of sites and ended up booking our Bash tower room and flights together on expedia. It was the cheapest we found. But make sure when you are searching on different sites, you are in incognito mode or have cookies turned off. Sites will track your cookies and see you are searching for a trip and the prices will actually be higher because of that