Kesuvos Daf 18 - The Machlokes Rashi & Ritva in כיון שהגיד שוב אינו חוזר ומגידש and the נ"מ of רע"א and the פנ"י
Kesubos Daf 12: The Lomdus of Bari V'Shema {The Teshuva Rav Moshe Wrote To Rav Shach 100 Years Ago Today}
Kesubos Daf 10 - Three Approaches to Answer the Ramban's Question Why the Husband Is Only Believed if a Kesuba Is M'drabbanan
Yevamos 116: The Machlokes Rambam and Raavad to What Level a Women Is Believed to Say to Her Husband, "You Divorced Me!"
Kesubos 6a: Rav Elchanan Elucidates the Machlokes Aruch and R"i Regarding Psik Reisha D'lo Nicha Lei
Kesuvos 3b: Analyzing the Machlokes Rabbeinu Tam and the Rivam About Giving Up One's Life Not To Violate Arayos
Yevamos 114 - Why Does the Gemara Not Deal With the Mitzvah of Chinuch? Three Approaches of the Rambam