The Washington Wizards have had one issue with Mike Miller this season: He's been too unselfish. That wasn't the case on Saturday night. Miller scored a season-high 25 points — including 17 in the third quarter and seven 3-pointers as the Wizards beat the New York Knicks 106-96. It was a night for superlatives for Washington, which earned its fourth two-game winning streak, but has yet to…