The stats can only tell you so much, of course. And you can interpret them any way you wish.
I think the stats and the performances show that Stones and Otamendi as a partnership is a disaster waiting to happen. I don't think anyone wants to see that again.
But there seems to be a bit of a misconception among some City fans that our incredible success in the previous two seasons was based on Laporte and Kompany being the bedrock of it, and Stones has been a disaster waiting to happen. It's simply not true.
Stones' record alongside Laporte compares pretty favourably with the record of Laporte and Kompany.
But even putting the stats to one side, my personal view from watching the game is that Stones is our best centre half on the ball at breaking the lines and finding a forward pass in to midfield. I doubt even his biggest critics would dispute that.
Fernandinho has been brought in to centre half for his ability to make those passe. But I think as a centre half, he's made tons of mistakes. But he's a club legend, so people forgive them. If Stones had made the same mistakes, he'd be getting pelters on here.
I love Fernandinho, and he's done his best filling in for us in an emergency. But the OP was about what gives us the best chance of winning the CL this season. In my view, out of the players we currently have in the squad, based on the stats and my own opinion from watching the games, Laporte and Stones is the best chance we've got.