Yeah my mouth was pretty much on the floor during that opening fight between Hulk and Thanos. Finally a "Russo Hulk" moment.
But then I was so ready for him to burst out of the HB armor like you said. The most powerful and most indestructible set of armor ever built and I couldn't wait for him to shred it like it was an old shirt, lol. Good point on him taking out a member of the Black Order as a human. That was pretty sweet.
I also loved the chick fight in the trench as those meat grinder wheels passed overhead, lol.
Even though Cap's scenes were kept to a minimum I couldn't help but smile that he still got some good punches in one-on-one against Thanos at the end. Steve Rogers lasting longer against Thanos than Thor, that's the Russos for you, lol.
And FINALLY an MCU film that *looked like a movie.* I loved the cinematography from beginning to end. Awesome use of those IMAX cameras. I swear if Disney releases this on blu-ray 2D only with no IMAX aspect ratio I'm going to kill someone, lol.