If you're basing it strictly off of last year for both Heath and Bjones then it is MUCH closer, ill agree. The two years prior Jones was an above average player, while Heath was a roster bubble player his four years before. Im Still giving the nod towards BJones last year, despite Heath making progress. Heath will never be the cover guy that Jones is, while Heath has made improvements in his tackling, while Byron regressed in that area last year.
Heath is best as a rotational centerfield, while Byron is best used against the other teams mismatch nightmare. Naturally Byron should give up more given his assignements, but in the slot he still didnt despite the disadvantage.