MaizieD
I think they're both rather ugly words, but I would use 'attendee'. It follows the same logic as 'employer' 'employee, 'detainer', 'detainee'...
I'm wondering where would 'attendant' fit in? English is capable of such nuance.
You see, I don’t think it does follow the same logic!
I employ you, so I am the employer, you are the employee.
I detain you, so I am the detainer, you are the detainee.
If I attend you,( as in wait on), I am the attendant, you are the attendee
If I attend a function, I am an attender surely?
I need to lie down now!