Related Clues:

• Friend's counterpart
• Darius, to Alexander
• Giant, to Jack
• Coke, vis-a-vis Pepsi
• "Friend or ___?"
• Romantic competitor
• ABC, to CBS
• Yankees, to the Red Sox
• Coke, to Pepsi
• Compare to
• One in a battle scene
• Opposing team
• Challenger
• No friend of mine
• No friend