Poll
3%
34%
0%
17%
7%
17%
17%
0%
3%
0%
From what I read, he had little faith in SW and thought the dialogue he was saying was "mumbo jumbo." Though the cast said he was a real gentlemen, kind, patient and performed his work in a professional manner despite his faith. That much shows when you see what a great job he does in the films.
The other part that Alec didn't like was that once SW became a success, he became known only for his role as Obi-Wan while his other roles were simply vanished. He didn't like being known only as Kenobi since his career was extremely distinguished and versatile.
Lots of veteran actors hate being known for only one role.