Not sure Wigan should be included in that list - pretty sure they have net assets of about minus £2mil. I think Leeds have c. £15m net assets (dunno about the others).

Wigan have minimal assets compared to Saints and Leeds and, consequently, they can't sweat them for anything like as much. If Central Park was still there things would be different. But as it stands, the club is, one would assume, in a difficult position although IIRC they've tried to open up new income streams away from the DW?

Late to this but as mentioned, Leeds have it very easy and the club is in many ways a licence to print money. That's easier said than done and Hetherington does a good job but there are lots of areas that could be improved upon. They are excellent at wooing and wowing corporates but the fact that money in those areas is so easy to make means, in my view, they have failed to fulfil their potential in others - marketing is often poor and merchandising is, frankly, crap.

If all clubs in SL were in as terrible financial state as wigan, RL in this country would be in much better shape

Wigan Rugby League Club Limited is technically insolvent. It relies on the support of its owner as do almost all other RL clubs in the country and that is not a problem; but it is not what you would call conventionally healthy.

I thought Wigan had made a profit for the last few years?, and thats before last years fire sale of players

They may well have done but that doesn't extinguish millions of pounds of directors loans/director's company loans. Last time I looked at a set of Wigan accounts they came to £3m+. If the club is running profitably now that is an excellent turnaround - although its worth noting that it may not be the intention for the company to make significant long-term profits anyway - break-even may well be enough for the owner so discretionary spending, such as community work or grants to related foundations, may be ramped up or down.