I have no qualms about whether ayshford plays or not, only that you chose to use the nines as an example of why Bird is a better prospect than Leutele based on nines form, but then chose to consider Ayshford's performance as irrelevant. Ayshford was our best performing centre (played in position as well) that day and it's hard to argue.
Personally, from what I've seen of Ashford's defensive technique and general attitude, I don't think he's suitable for first grade...but he did show a lot more determination in the nines so I'm interested to see if that translates to the season proper (from reserve grade though.)
I have no favourites for centre spots, but I want NRL quality starters for Round 1 (in all positions). I think that means a pick from Beale, Leutele, Saulima and Brown, with Ayshford and Bird in contention pending trial form or reserve grade form.
I think Bird is more suited as a bench back rower currently as he hasn't the defensive experience in the centres (the most tactically difficult defensive position imo). He'll get found out if tested too early, especially if Holmes is on his wing who also hasn't had too much time there in any grade let alone NRL.
Feki, Beale, Brown and Gagan would be my choice of starting back four for round one just for safety's sake, with a view to the development of Bird, Saulima, Leutele and Holmes.