To me, this whole thread seems like a first world willy-waving contest. ATCs in both regions deal with highly complex and highly idiosyncratic challenges. And guess what, the statistical results show that both are beyond extraordinarily successful.
While I am sure that there are possibly improvements available for each ATC regime, it is clear that these are likely only to be marginal at best.
As a pax, my hat is off to all participants in both systems. Neither should be slagging at the other -- unless it is just in good humor.