A few older and newer authors whose writing I enjoy:

• Louis L’Amour and Craig Johnson for westerns
• Thomas Davis Bunn for adventure and historical fiction with a Christian tone
• Steven Gould for science fiction adventure without spaceships and lasers
• Dominic Green for science fiction laughs — the books may be aimed for younger readers, but I find them funny in a dry sort of way
• Lois McMaster Bujold — character-driven, space adventure at its finest, with a solid foundation of morality and honor