The "big three" as I call it (Blue Streak, Tumble Bug, and Devil's Den) are all great rides, especially the Blue Streak! Sure, it's a bit painful, but that airtime in the back is insane! I remember being there with TPR in 2012, and there was a girl on the tour who'd never been on a woodie before. The rider cam from her ride in the back seat was simply amazing to watch!
As for the other two rides, the Tumble Bug rides much better than the other one (Kennywood). Conneaut Lake runs theirs much faster with a much longer cycle than Kennywood does. Also, don't forget that Devil's Den is one of two remaining Pretzel Gravity Dark Rides (the other being at Camden Park in Huntington, WV). It's a fun ride, but the one at Camden is in much better shape.
Great TR, though! Looking forward to your Waldameer visit!