UK ATC are in my opinion the best in Europe, not only in terms of controlling, ie having an understanding of what an aircraft can do - realistic speeds/changes on approach, but also in terms of your situational awareness.
In particular at Heathrow, you guys and gals have one heck of a mental model going, and you share it with us by advising us of other aircraft movements etc.
When the unexpected happens, you do a great job of reworking your plans.
Enough of the praise, but I feel it is deserved. I couldn't do your job!
K N
