I love reading books about the saints. The more wicked they were before their conversions the more they interest me. That is why some of my favorite saints are St. Mary Magdalene, St. Paul, and St. Augustine. St. Augustine was really rotten, even when he knew God was calling him, he still held back. St. Paul needed a hard knock on the head before his conversion; it reminded me of my own experience. These saints give me the greatest hope for my own salvation. The wicked ones who were forgiven the most were the ones most passionately in love with the Lord. They became full of zeal. I often ask for the intercession of these sinner-saints. I can relate more to the sinner-saints than the ones who never fell very far.
Suffering-saints are another favorite of mine. Whose heart wouldn't be moved by the intense sufferings of St. Padre Pio? Actually, most saints fall into these two categories. There were a couple of saints who were practically perfect from birth but don't ask me who they are; I've already forgotten their names :)