He is. At club level.
He's also 4 years older so he should be a lot more rounded.
But we've seen that what works in the Prem doesn't always translate when the going gets tougher. CCS has the kind of natural power and ruggedness few are blessed with. That still counts in the international game, especially as our front 5 isn't overly powerful. He carries well, including from the base, hits hard and his line out has improved hugely from virtually zero a couple of years ago. He's not the complete footballer, but he can throw some decent offloads. He makes mistakes, but experience will sort many of those.
In terms of of work rate and all round skills, they're important but I guess I look more at the number of meaningful interventions and CCS has already shown he can provide those with and without the ball.
Willis has been standout and thoroughly deserves his chance, but I see CCS as a genuine 6 / 8 option who's more likely to nail down 8 longer term as we have a plethora of flankers.
I guess I liken him a bit to Underhill who also had the physicality money can't buy but had a few rough edges to smooth off with ball in hand.