The only thing GHC has to offer which is better than ADA is the accommodation.
Both companies are garbage to work for and are completely over-run with Keralite bean counters who do their best to screw anybody not from their province. The way things are going it's not just the bean counters who'll be from Kerala. Engineering is already falling apart and I'm one of those who left because I no longer feel safe flying in helicopters where the maintenance is being done by tired, fed-up engineers. They try their very best, but there's no incentive, except their professional pride, for them to want to put in long hours for next to nothing.
The working conditions may not be as good, but Bristow are employing 212 and 412 pilots and engineers at better pay in Nigeria right now. Maybe some of the people should think about moving to another hot country a bit further west