I walked past you twice and tried saying hello, but as you said it was a busy weekend and quite noisy. Still, glad you enjoyed the weekend for a first EGX.
I don't think i spent longer than an hour in any one queue at a time, even on Battlefront. I think i timed everything quite well (either that, or i was quite lucky). The shortest queue was on Banjo Kazooie, the seat was empty. But shortest triple-A title i played was Call of Duty, only had 3 people in front when i joined.
I managed to play everything i set out to play, if i had done the 4 days i would have used the final day to play the retro and indies as a chill day. Queues were not ridiculous in these areas, so you could easily have played many games in a short space of time.