Never watched He-Man, Voltron, Speed Racer, Sailor Moon as a kid. I knew of them as there was always left over toys, coloring books, playing cards and games with the characters on them in the daycare. I also didn't regularly watch Ren and Stimpy, Rugrats, or basically anything Nickelodeon as a kid either, i didn't have cable growing up and only caught a few episodes over at grandma's and friends' houses. Basically if it was broadcast during the 90s I watched it, except Dragonball and YuGiOh.
When I did see those shows I didn't think any of the mentioned ones were good, maybe for their time, but not when I saw it. The nineties shows still hold up though, like Animaniacs and Batman.