I'm glad you're open to it. Another thought, some fans, myself included, like to think of Sam as the main hero. Frodo is quiet and is practically wandering around in a daze for the whole third film, while Sam is cooking for them and taking care of them. He has the one-liners (get back, you filth!), he gives the inspiring speeches (though Frodo helps him out with the one at the end of Two Towers), and he's the one Galadriel looks at when she says, "Yet hope remains." Also, in the books, after the war the Shire doesn't celebrate the day Sauron was defeated, or Frodo and Bilbo's mutual birthday; they celebrate Sam's birthday. It's sort of like that thing in Harry Potter where Neville was almost the chosen one. It isn't inherently better than Frodo being the hero but if you do ever watch it again, it will give you something new to think about.