I am singing a song that I practiced alot: go the distence from disney's hurcules that is outside my range as a baratone and switch to all of me john legend and it sounds worse is there a reason for that

"All of me" is a tricky song! Although John Legend sings in the baritone range, that song requires pop flips (intentional voice cracks), belting, and the melody sits quite high. 

Please see here to get you started with some easier baritone songs: https://www.youtube.com/watch?v=T2MT0iUmli0.