I always loved her stuff, though ultimately I may have outgrown the Dragonriders. (I dunno, though. Just remembering it reminds me how awesome F'lar was. Also Ruth. That was one kickass little dragon.) The richness of her Pern books was astonishing, and for once time travel worked relatively well. She apparently said some kinda mean things later in life... but I'll put that down to the era of her birth and give her credit for all the wonderful things she said about other authors. It often seemed like she was the go-to person to comment for just-starting-out writers, as she always had a kind word for a cover blurb. And she was usually right, too.