Vercingetorix... But some USA controllers who visited Heathrow when the move was being initially discussed warned us emphatically not to do it!!
<<One of the benefits, at the time, was that both APP & TMA controllers got to know who the voice at the other end was. e.g. if you saw 'XXXXX' sitting on EGLL APP you knew how close, or how far apart, you could offer traffic. >>
Well I do recall one of the lovely ladies who had been doing LAM inbounds running over and giving me a huge kiss because I'd brought everything off but I don't think management would have viewed that as a benefit!! Over at Heathrow we'd often answer internal phone calls with our names or initials so we'd know who we were dealing with but when we did that at LATCC it was heavily frowned upon - understandably I suppose; it was hardly "book standard".
The 20+ years I did at Heathrow working both TWR and APC were the happiest days of my working life and I think it was a tragedy when the split took place.