POLL: Carra? Agger? Coates? What is LFC's best defensive unit?

Liverpool are in the unique position of being completely injury free at the moment, and with 7 or 8 players fighting it out for 4 first-team defensive spots, who should be part of a settled defensive unit for the club?

One of the keys to a successful team is undoubtedly a settled defensive unit, and that is something Liverpool haven't been able to maintain as a result of persistent injury problems over the last year.

Related

• "I do know people are asking me about Brek as he is the premier talent in America"
• Liverpool vs Manchester United 1-1 Highlights 2011 Goals Video October 15 Gerrard Chicharito
• Stoke vs Liverpool Highlights 1-2 Carling Cup Goals Video 2011 Luis Suarez
• Ugly Aftermath: Did Luis Suarez Racially Abuse Patrice Evra?
• Video: An interesting insight into Ryan Giggs’ priorities (Liverpool v Manchester United)
• Liverpool 1-1 Manchester United: Reds Denied By Javier Hernandez Header
• Manchester United vs Manchester City Preview
• Is John Barnes right about Luis Suarez...?