I don't become a fan of any of them until they don the shirt. Until then, all I try to do is understand the logic behind why we might go for one over the other. I look at Laporte's playing time and see that, through injury, he is basically capable of giving us every second season, which for us is not enough as his absence places greater strain on the others. He's also less comfortable in the left-back role, so I could see us looking to move him on this summer (still contracted through to summer 2025). Akanji can deputise if Ake is out, but his inability to move the ball down the line with his left makes him much easier to press against; Fulham had sussed that out by the end of the first half yesterday. And, as we also saw yesterday, we sometimes need his muscle in the centre when the opponent plays with a target man.
I'm not completely sold on Gvardiol, given the assumed price, but I can see the logic in going for him. As I mentioned above, he could end up covering two positions, and he already has huge experience. Even though he has only just turned 21 (a week older than Harwood-Bellis), he has already played almost the same number of minutes in the Champions League as Ake (20 minutes less) and played in a World Cup semi-final. He would also bring the average age of the centre defenders down.
However, all that said, if we end up laying out big fees elsewhere, I wouldn't be at all surprised if we went sniffing under the trees again. We've shown with Alvarez, Akanji, and Perrone that we've got a good nose for the truffles. :-)