Yeah Hayden Tee definitely stole the show (along with the Thénardiers omg)...but you're kidding yourself if you think there's a better Javert anywhere than Philip Quast

BHH was probably the best moment of the entire show, quite the performance, especially as I thought Simon Gleeson had been somewhat lacking vocally up until that point. Don't even get me started on Euan Doidge though, I'm still trying to block his Marius out of my memory. It was almost Jonas bad (but nothing is actually Jonas bad).
The 25th anniversary production is pretty much unequivocally awful haha, or at least the British leg was. I dunno about the projection, I thought it was a bit tacky other than in those two scenes that you've mentioned and even then it felt a bit contrived, though I can see why they did it.
I totally agree regarding the ensemble though, that was one of the absolute highlights. They kept wowing me throughout. The set design was also pretty fabulous.