Lawrence has been playing rep level footy for comfortably the past two years. And he has been playing at a high level ever since his debut, he had some defensive issues when he came onto the scene but he's certainly fixed that, and he's so dangerous with the ball. Excellent player who would have played Origin this year if not for injury, and probably should have played last year.
I agree, Lawrence is very good and probably is one of the best hole runners. Its almost as if he always runs between players rather then at player but tonga is more likely to beat someone one on one. I think personally I would have them on par in terms of ability but Tonga is proven over time and at the highest level, something Lawrence is yet to do. That also means Tonga is past his best while Lawrence has his best in front of him.
Irrespective a centre pairing of Tonga-Loko will be one of the better in the comp and provides a lot of size and speed outwide. It also means that there is 2 or 3 target players out wide that the defence will look at and someone like Hayne could be used as a decoy for Tonga and vise versa.