Gargoyles had strong episodes in the beginning that drew you into the story. That five-parter holds up even today and those are my favorite eps, not the Oberon ones. The Oberon shit was good and all, but the series still had a solid beginning. And they didn't do the whole "Goliath goes here and saves these people thing" (what Thundercats is kinda doing now) until after the initial Avalon eps which were in the second season when we actually cared by then who Goliath was and why he was doing what he was doing.
As for Reboot, I didn't care for season 3 either. I don't remember the first eps but, to be fair, I wasn't the biggest fan of that show.