Gundam Wing definetely isn't the best anime, but definetely the most memorable for me, not including DBZ, as those aren't exactly happy memories. I used to watch Gundam Wing every weekend, and apart from the first episode, hadn't missed a single episode. I was young though, and was confused with the series/season after the finale of Gundam Wing (it was something...DIFFERENT!), so I stopped watching Gundam...
Fond memories.