Apocrypha is generally more fun. Lots more interesting narrative, for starters.

Anyway, most Christians don't believe in 'the Bible'. They believe in 'the Bible as moderated through years of tradition and wossname'. And as you know, because of that key word 'tradition' you can use the Bible as a starting point for a fairly sensible philosophy of life and living, or you can use it to justify your totally barking daftness of evil.

And yes, The Epistles are terribly important to christians. Just also mostly barking and bloody annoying.