Re: What made Patrick Stewart so perfect as a starship captain?
As you others have said, Stewart's presence, his Shakespearean acting experience and his voice made him perfect for the role. I think the captain in the novels followed Stewart's portrayal more than the storyline might have done had he been a less-talented actor.
Varek, Vulcan Engineer
Infinite Diversity in Infinite Combinations
Time, like latinum is a limited commodity