Coach: Tony Smith (since March 2009).
Captain: Adrian Morley.
2012 finish: 2nd.
2012 leading scorers: tries - Chris Riley 25; goals - Brett Hodgson 82; points - Brett Hodgson 196.
Biggest Super League win: 68-4 (v Widnes, 2012).
Biggest Super League defeat: 72-2 (v St Helens, 2002).
Ground and capacity: Halliwell Jones Stadium, 15,000.
2012 average attendance: 11,070 (down by 79).
Record Super League attendance: 15,000 (v St Helens, 2012).
Out: David Solomona (retired), Matty Blythe, Ben Evans (both Bradford, on season-long loan), Lee Mitchell (released).
Odds to finish top: 7-4 fav.
Prospects: No new signings and 10 thirty-somethings in their squad but Warrington have enough star quality to be pushing for a first Super League title after going so close to doing the double in 2012.
Coach: Denis Betts (since November 2010).
Captain: Jon Clarke.
2012 finish: 14th.
2012 leading scorers: tries - Patrick Ah Van 14; goals - Patrick Ah Van 29; points - Patrick Ah Van 114.
Biggest Super League win: 46-8 (v Salford, 2012).
Biggest Super League defeat: 70-4 (v Hull, 2004).
Ground and capacity: Stobart Stadium, 13,350.
2012 average attendance: 6,046 (up by 2,302 on 2011 Championship).
Record Super League attendance: 9,825 (v Warrington, 2005).
In: Kevin Brown (Huddersfield), Gareth Hock (Wigan, on season-long loan), Stefan Marsh, Joe Mellor (both Wigan), Phil Joseph (Bradford).
Out: Anthony Mullally (Huddersfield), Simon Finnigan, Thomas Coyle (both Leigh), Kurt Haggerty (Barrow), John Kite (released), Paul McShane (returned to Leeds after loan spell).
Odds to finish top: 250-1.
Prospects: Widnes will be better for the experience in 2012 and will believe the capture of Huddersfield captain Kevin Brown, in addition to his brother-in-law Gareth Hock, can help propel them up the table.
Coach: Shaun Wane (since November 2011).
Captain: Sean O’Loughlin.
2012 finish: 1st.
2012 leading scorers: tries - Josh Charnley 32; goals - Pat Richards 63; points - Josh Charnley 240.
Biggest Super League win: 78-4 (v Workington, 1996).
Biggest Super League defeat: 70-0 (v Leeds, 2005).
Ground and capacity: JJB Stadium, 25,004.
2012 average attendance: 15,208 (down by 79).
Record Super League attendance: 25,004 (v St Helens 2005).
In: Scott Taylor, Blake Green (Hull KR).
Out: Thomas Leuluai (New Zealand Warriors), Brett Finch (Melbourne), Jeff Lima (South Sydney), George Carmont (retired), Stuart Fielden (Huddersfield), Matty Russell (Gold Coast), Gareth Hock (Widnes, on season-long loan), Stefan Marsh, Joe Mellor (both Widnes), Ryan King (released).
Odds to finish top: 3-1.
Prospects: Wigan face a difficult task overcoming the loss of four quality overseas players, including two half-backs, as well as Gareth Hock, so it is hard to see them retaining the league leaders’ shield.
Odds courtesy of William Hill who have given odds of 40-1 for Giants to finish top and predict a seventh placed finish.