I think this is like asking about milk that is better than milk:) Stake is a true leader of the industry and I see no other gambling site, which could outrun them. Yes, there are some decent casinos apart from Stake, but they are not even close to the Olympus, I think. This is my personal opinion. Don't take it as the only truth:)
Yes. Maybe he should first explain what he doesn't like about Stake Casino. This might help us understand the problem that he had, and it might clear the air.
In terms of the best casino, I agree that it's one with an impeccable reputation. Everything else is a matter of personal preference.