The best for Hotel Bookings ? (If you dont mind paying in advance)
I have used Holiday Club before for a number of bookings.
Unlike most hotel booking sites they seem to take money at the time of booking and issue a hotel voucher through email to give to the hotel. The advantage is you know the price (without currency variations). Disadvantages you are paying in advance.
In the times i have booked with Hotel Club it has worked well (Even when i lost the 'voucher' the hotel obviously knew about the booking and it wasnt a problem (I just emailed them a copy later).
Most of the time they are the same as the cheapest other hotel booking agency but they offer hotel reward points which you can use as a discount immediatly on your next hotel booking, in addition to the discount through this site.
My latest booking was yesterday and the cashback credit has been added already.