I'd be patient on Bjork. I think he'll be a good third-fit on the Marchand-Bergeron line... but you do need to WAIT until Bergeron is back.
Milano is an excellent tools player, he's got "slick mitts"... but his defensive game has been questioned in the past and Torts is as quick as they get at putting somebody in the doghouse if their D game slides.
I'm gonna roll the dice on Bjork for the year IF that's the focus: one-year of stats.
Long run, though, Milano is the better player.