Breaking Bad's fourth season turned out to be the series' highest-rated season yet. So which episode is your favorite? Is it Episode 9, "Salud," in which Gus wipes out Don Eladio and his capos? Is it Episode 6, "Cornered," featuring Walt's "I'm the one who knocks" speech and "Tucker!!" digging a hole? Or perhaps it's the Season 4 Finale, in which Walt (SPOILER ALERT!) finally defeats Gus? Can't decide? Check out the Breaking Bad Season 4 episode guide for a refresher on what happened each week, and then vote for your favorite ones in our Season 4 Episode Poll.