Going back to that particular time-period, and basing my choice solely on then and not now, my vote would go to Chip & Dale's Rescue Rangers. I was a fanatic of it. For my fourth grade class, I got Chip & Dale Rescue Ranger Valentine's to give out.
I would make sure I'd watch Chip & Dale every afternoon. Now, for Tailspin, I wasn't into it much, and never watched it (regularly) when it was part of the original Disney Afternoon lineup. I didn't watch that til Disney Channel started showing it in about 1993, and that's when I started to like it. ^_^