Imo its Real Madrid vs Manchester City as they faced each other in 5 knock out rounds (2024-2025 playoffs count aswell) of the 6 seasons with the score being 3-2 for madrid. 2020 and 2023 city won comfortably. In 2022 and 2024 Real scraped through and in 2024-2025 they smacked them up. Honerable mentions are PSG vs Bayern when Bayern won the final in 2020 and PSG got their revenge a year later. Liverpool vs Real Madrid as they played in 4 ties. Liverpool winning just once being last season.   submitted by   /u/Cultural-Crow-1528 [link]   [comments]