Matthew Stafford just spent his first Christmas in Detroit. His family joined him. For the first time in his life, snow covered -- at least partly -- the ground. "It was great," Stafford said. It was, he added, as memorable a Christmas as any he has had. Fullback Jerome Felton's best Christmas started the night before, when his mother let him and his family open all the presents on Christmas Eve. Linebacker Zack Follett's most memorable Christmas was the time he got a Vikings helmet and a Daunte Culpepper jersey. He said he was 12. Culpepper was a rookie. Somehow, Culpepper turned Follett into a Vikings fan even though he lived in Fresno, Calif. "Great Christmas," Follett