I never saw the Quast-Hodge / Pacey-Norton pairings but I saw all the others and I have to say I found Quast-Allam by far the most entertaining and convincing of all the leads.
I thought Roger Allam was absolutely sublime and completely hysterical as Albin (even though I loved the vulnerability Douglas Hodge exhibited in the role when I saw him last week). And Phillip Quast was just mesmerising too - he had so much fun with the part of compere and his singing voice is unsurpassable. I felt they had far better chemistry than any other pairing IMHO.
Here's the bit where I might be shot: I think I'd have enjoyed Simon Burke's performance a great deal more if I hadn't ended up feeling sorry for him (both as a character and as an actor!) in having to put up with such relentless shrieking and selfish narcisissm as displayed by 'his' Albin/Zaza.
As I've said previously, I would liked to have seen Quast's performance alongside Hodge's and I am very intrigued to see / hear how Kelsey Grammer's interpretation of Georges gels with Hodge's Albin/Zaza.
Seen some shows in my time....