I have been to Hanging stone and Gregoire,
I must say Hanging stone is nice you are the kind of camper to go out for a long weekend/week . Its quiet most of the time (I dont really care if people are having a party i can sleep through most things out there
,although its only 'old' people around a fire with their guitar having a social drink) Its about 45min south and the people are friendly although not many go as its your standard provincial park, no hydro , cable ,water (except for water pumps and out houses). People are friendly if you're friendly but like i said the majority of the time it is quiet.
Gregoire, oh boy.. the couple of times i've been there there were a alot of rowdy noisy teens and people are always coming in and out with their boats. As far as I know they have hydro and water. About a 10 min walk to the lake depending on where you are in the camp ,its not as gross as people make it sound. There is a convenience store but everything is over priced like you would imagine. This one is about 45-1h out of Fort mcmurray.
Edit: Just went to the paper's website and just read theres toxic algae in the lake
I'd scratch going there now since the lake was one of the bigger reasons of going.