JLT form, price, potential to make money, job security and team played for.
Simple really.
Apart from job security which I believe is even at best (in fact I personally think Parfitt will play more), Parfitt wins all of those other categories.
Parfitt is 50k cheaper, will play in a team that wins more games, and will consistently get 60s, so will increase in money value much more. In the JLT series, Bowes played 60 mins for 35 SC points, and 72 mins for 39 points - ordinary in comparison.
So.....
Parfitt......comfortably.