Best fights, friendships and rivalries in Marvel? You can choose to answer one if you donīt wanna answer all answers, if you answer fights please say the arc name, time publising (1999 or something) series tittle and/or the number, for example, I donīt know, The Avengers # 31 (2006).
With rivalries I donīt only mean hero vs villain, I include hero vs anti hero, hero vs hero, you know.