Martin Freeman would have been a much better Frodo. Elijah isn’t even in the top 100 list of actors that I would cast as Frodo.
The LOTR movies succeeded despite him.
Don’t get me wrong, I like Elijah. I just feel that he was miscast in those films.
Fyi you’re thinking of Michael Sheen, not Martin Sheen. I agree though, Michael Sheen would have probably been amazing as Bilbo