By Alek Arend The top dynasty in college football might be in the lead to land five-star quarterback Arch Manning. Alabama is the new leader in the clubhouse to land the nephew of NFL greats Peyton and Eli Manning. The Crimson Tide currently have a 35.6 percent chance getting Arch’s commitment. Arch just spent the weekend in the Tuscaloosa getting to know Nick Saban and the University of Alabama. It’s his third visit with the Crimson Tide. Alabama now holds a slight lead over Texas, Georgia and Ole Miss in On3’s recruiting prediction machine. Arch Manning with Nick Saban? Sign us up. Take a lo…