Cardiff are as short as 7/1 in the early bookmakers' odds after the linne-up for the division was finalised last weekend, Derby remaining in the Championship and Rotherham United moving up from League One.
The Rams are generally second favourites to win the title, just ahead of relegated duo Fulham and Norwich City while the Millers can be backed at 66/1.
Opinions of Nottingham Forest's chances at this early stage vary quite a bit. Stuart Pearce's side are as short as 11/1 and as long as 20/1.