Cage is probably going to be around there. Even with his limited feats, I feel like he is above Cap and Bucky already. I don't quite see either of them being able to pull off that SUV stop like Luke did (durability played a role in not getting hurt, but it required strength to physically stop the vehicle). Also, he has consistently, and quite easily, absolutely wrecked things like metal, brick walls, cement etc. with his bare fists. As badass as Cap and Bucky are, only WS' metal arm has quite done similar (at least consistently), in terms of pure striking power.
Re: Rank them by physical strength
Originally posted by TethAdamTheRock
Captain America
Winter Soilder
Frost Giant
Loki
Spiderman
Lizard
Like Cage
Iron Man
Colossus
Thor
In pure strength
Thor
Colossus
Iron man
Loki / frost giants
Winter soldier
Cap
Luke cage
In lifting strength
Iron man
Colossus
Thor
Winter soldier
Cap
Loki
Luke
For example Golem listed Cap at 1000 to 3000 pounds and then
the frost Giant at 2,000 to 5,000. So he's giving a range, and that range includes Cap potentially being able to lift a 1000 more pounds. Not even close. Any range should have the frost giants lowest possible level well above Cap's highest