Slinky, even if it's a "family coaster," is a lot more enjoyable for me than FOP.
Most of the FOP experience is really unpleasant, from the endless queue (even with a FP/ILL/whatever they're calling it these days) to the protracted "pre-show" (i.e., rest of the queue). The 2-minute ride itself (awkward vehicles notwithstanding) is good, but not at-least-45-minutes-of-my-park-day good.
For the record, I GOTG:CR suffers from the same, but the ride itself is so great I'll put up with all that other fol-de-rol of the endless queue/pre-show.