Site-specific Ressies or whatever's available? Preference?

We prefer site reservations. Canadas national parks just changed to that this year. My two brothers and I are heading to Jasper this year with our families. One brother wanted full hookups (which are all pull thru). I didnt want a pull thru because it creates another exit we need to moniter regarding our young children. Other brother didn't care. By checking out the maps, we have 3 sites in 2 loops that are within sight of each other. With a playground at the center. Try getting a ranger to meet that request.