Who is our best centre back pairing

No, not defensively

 

For me Lindsay has made the most blunders lately, but has had an excellent season overall. He is the ball winner at crosses generally & prone to make errors. The other CB is more of a man marker, distributor, if you go for a pairing & that's why I favour Pinnock.
I don't think defence is our weak link. I like the way Morais has changed the team in recent weeks has made us more creative, but it will take time for players to totally get it. Williams & Gardner can be more defensive in the system, with full backs pushing on, but in some situations one of them does need to press on, especially when we are chasing the game. They both seem to have a nosebleed when they get near the penalty box.