Whilst not strictly award tickets, British Airways allows their award points (avios) to be used to discount the cash price of any normal revenue fare. Flights purchased in this way will count towards status.
A number of hotel chains allow award nights to count towards status.
Wiki updated for NH.
Perhaps the weakest aspect for NH LT membership is that there will be no LT status(Gold/Platinum/Diamond) even if you achieve the milestones. I checked that with their customer service. It's just that you can get LT miles on award tickets, which, however, help you to get something back on NH :/