I would not like to see a fully loaded 773 boarding from Prestwick. Its cramped enough when just one 738 or A320 is boarding!
Hmmm generally feel it's OK with ONE B737-800, I think the Ryanair boarding method of queueing in the corridor isn't the best.
To be fair they used to board three wide bodies every Saturday lunchtime when I was a kid. Northwest Orient B747, Wardair B747 and Air Canada TriStar / B747. Then Worldways would turn up.....
Happy days. I used to cry at DC8s because of the noise apparently. Anyway I digress....