If Boston Scientific Corp. wins its battle royal with Johnson & Johnson over Guidant Corp., the company will owe a big debt to Abbott Laboratories, and not just a debt of gratitude.

Guidant said Tuesday, it favors Boston Scientific’s latest bid, $80 per share tendered Tuesday morning. That trumps J&J’s $71 per share. The declaration is not the same as acceptance: It has until Jan. 25 to consider the bid.