Chesterfield and MK Dons are both without a win in four matches. The Spiretites are still well-placed in sixth spot, but the Dons sit in a lowly 14th spot. Leaders Gillingham continue to look strong and are the only unbeaten team this season. But relegated Crawley Town and Shrewsbury Town are both struggling to make an impression and stop the slump. So who are the current favourites for promotion and where is the current value?