Of those mentioned Danns is more of a 'proven' mf player,whilst Lines is still in the 'potential' category.
If given as an option in mf then Stock might get my vote.
Upfront,I'm indifferent to Jackson, and possibly even underwhelmed by Tyson.Reading the Forest forum last might there seemed a number of comments about him having lost his pace,often considered his main attribute,and as Pilchards mentions there is a question over his attitude.
The old head, Oakley fits the bill after his promotion successes at Derby and Leicester.Savage probably carries too much 'history' and Hendrie has not proven his value at offering experience whilst out on loan.Be happy to be proved wrong though.