Ipswich
Belle Vue
Sheffield
King's Lynn
Leicester
Birmingham
Oxford
You can basically split them into 3 groups.
Ipswich are clearly the best side and you have to believe they'll comfortably finish top and win the play-offs as long as they avoid injuries. The next two should also easily make the top 4, Belle Vue's strength in depth gives them the edge over Sheffield and I think they'll end up beating them in the semi-final.
Then you have 2 sides competing for that 4th spot. Both look decent teams but Leicester will miss Lawson and so King's Lynn will just make it ahead of them.
Birmingham are stronger than last season at least and possibly not that far off a team that could challenge the two above. They'll have a few nights where they're all on form but also take some hammerings as it looks a team that will suffer from not being consistent enough. I didn't particularly rate Oxford's side last year but it was one that was capable of finishing 4th until they kept weakening it, can only hope for their supporters sake that they don't do that again as they already look unconvincing.