Ok lets see if this info can help us:
Turin-
*The most feared of Men by the servants of Morgoth
*He did great service to both Doriath and Nargothrond, and is famed for slaying Glaurung, Father of Dragons
*Cursed by Morgoth, and evil followed him always. In the Forest of Brethil he came upon his own sister, but through the spells of Glaurung they did not know each other, and wed. After Nienor discovered the truth, she threw herself to her death, and in despair Túrin fell upon his own sword.
Tom-
*A mysterious and powerful being
*Tom was a creature of contradictions, one moment defeating ancient forces with hardly an effort, the next capering and singing nonsensical songs.
*
Tom Bombadil is the prevailing mystery in Tolkien's work. While almost every other aspect of Middle-earth is described for us in exacting detail, Tom is an enigma. We have almost no clue of his origins or his fate, his purpose or even what kind of being he is. It is no surprise that none of Tolkien's characters have attracted more discussion:Was Tom an Elf?Was Tom a Maia? Was Tom a Vala? Was Tom Ilúvatar Himself?Was Tom a 'Spirit'?
Well, Tom certainly is a very mysterious character indeed and as we do not know his origins or purpose in life, and has limetless power it seems, and even being Eru himself, i think Tom wins🙂
(all the info above came from the Encylopedia of Arda is you want to have a look)