Not Laird. He has been too poor this year to be a keeper target now, do you want a 90 average player?
Hurn seems to have turned the corner and will play a lot of games in Perth, where he is scoring better. Seems to have some upside.
Stewart will be a good buy, but wait a week. 162 BE.
If it's this week, I would say Hurn, even with his bye next round - all 3 will have a bye at some point. If it's next round, I prefer Stewart.