Nuanced comparison of Naruto and One Piece: themes, side characters, endings.

[Dennis_R]

I'm a longtime anime fan who grew up with both series, but I'm trying to articulate a critical comparison for a discussion panel, focusing on their thematic execution and legacy. While Naruto's exploration of cycles of hatred and redemption is compelling, I feel One Piece's world-building and consistent thematic focus on freedom is more structurally ambitious. For others who have followed both to completion, how do you assess their handling of side characters and power creep over their lengthy runs? Which manga's ending felt more satisfying in resolving its core conflicts, and how did the anime adaptations for each impact your perception of the story's pacing and emotional weight? I'm less interested in a "which is better" fight and more in a nuanced analysis of their narrative strengths and weaknesses.