I believe that Glantz’s Dror Yikra is a Talner niggun. Glantz was very influenced by Chassidic dveikut melodies, and was from a Talner family. Then again an old friend of my mother’s, a professor in Bar Ilan University, told me it’s a Munkaczer melody. My money is on Talne.
My favorite among the current crop of cantors (aside from me hehe) is Yanky Lemmer. He has great talent and takes the time to learn the technical aspects of the art. He is not your typical zoger wannabe/poor imitator. I also like Simon Cohen.