.Durn it all, you're going to make me go find a dictionary to find out the real pronunciation.
For myself. I know perfectly well how to pronounce quay, but in my head, when I'm reading it will always be kway.
I've also heard it pronounced like 'key'.
I've heard 'key', 'kay', and 'kway', depending on who's talking.
It's sad how many people don't know how to spell queue. I work in a place where we have a call queue, and until I got there for YEARS on the phone list, there was the 'Que Calls' section. Every time an email gets sent out to the sales floor, it goes along the lines of:
Ms. So-and-so called into the que, was looking for someone who had talked to her before.
Although, the Que Calls could have been right, if someone decided to mix Spanish and English. I mean, we didn't know who was calling.