Goldobin isn't a prospect anymore imo. I won't vote for him on that basis. He's 9 months older than Virtanen, not eligible for the Calder etc. Personally, I use waiver elibility (I know most won't agree with that) to decide who's a prospect and who's not. If you can't go down without passing through waivers you're not a prospect anymore.
I haven't completely given up on him as an nhl'er, but he sure as hell better claim his spot on one of the top 2 lines this year (out of camp/preseason), because looking at the guys he has to beat out I think if he doesn't do it now, he's pretty much used up most of his chances. Probably all his chances with us.
I voted Woo, because I think he has the best combo of upside and floor. His upside might be a #3, who can anchor your 2cnd pairing and take the toughest defensive matchups, or pair with your #1 offensive guy and play the steady eddie role. I can't see his downside being much worse than a bottom pairing guy (maybe #7/8 at worst) Sbisa type- hopefully w.o. the free pizzas.