I'm looking forward to ThreeZero's T-60 the most, but I can't disagree with all the people that said Ghostbusters! They're definitely a close second (and third, and fourth, and fifth...) For me.
Toys Era The Steel, Metal Man, or whatever DP's Colossus is being called this week. I've been waiting for a massive Colossus figure since his first onscreen appearance in X2, but I'm happy that the DP version is what I'm getting.
Closely followed by Hot Toys Force Awakens Han Solo, QMX Scotty, Hot Toys Harley Quinn, and Big Chief's War Doctor (I'd add their Connery Bond as well but I don't have high hopes of getting that in hand this year).