Fish Lake is closer, but is not on (or even near) I-90 - probably slower going (due to the aforementioned traffic) to get to the locations you need to go, though any given day the traffic on the interstates and tollways can be backed up too. Either way, you're a distance out. If some of your group is already booked at Fish Lake, you may want to consider being with them, just for the convenience, though all our other suggestions (IMO) are nicer CGs. Not "stupid" to camp, just less convenient than some other choices. I'd sure rather sleep in my own bed when visiting, if given the choice! Good luck to you & to the team!