Wendy's (WEN) stock collapsed 27% in a year while McDonald's (MCD) same-store sales inched up just 1%, leaving Burger King room to grow. McDonald's $2.86 billion net income dwarfs Restaurant Brands International's $665 million, but same-store sales momentum makes Burger King's long-term case increasingly competitive. (Burger King is part of Restaurant Brands International (NYSE: QSR).) Burger King has a long way to go to beat McDonald's, but that does not mean it cannot take away market share. So, again, the race is for market share, and once again it appears that Burger King is gaining.