Neither for me personally.
The obvious reason is selecting Galvin last year was his price, he started and was the playmaker even is his rookie year, and as the season went on he proved his worth as a relevant SC player and IRL. Way too much downside this year IMO, Luai surely takes the reins thus pulling a lot of attacking stats off Galvin, and no doubt coaches will have had time to study him and will implement a better defence at him.
Luai, could come out and prove himself as a genuine playmaker, 2 years ago I would have scoffed at that, but last year he really let his playing do the talking not his smart ass attitude and mouth. I still have reservations as I feel that 16 other Panthers all singing to the same hymn book significantly aides Luai to show case his talent, the Tigers I think will prove to tough for him. Also, apart from last year, Luai has never really been SC relevant and his price is way too high given the above.
It seems full backs are the way to go over the last few years, so Weekes with Dual FB/five eight is were I am heading and I firmly believe uncle Wayne will get the best out of the Souths and Cody Walker, so they will be my selections.
It is all a gamble of course and trusting your gut sometimes is crucial, hoping this helps.