Checked two Walgreens and found one set of the wave at one, no movie minimates at the other. My thoughts on the figures:
Ronin: One of the better figures in the wave. I think the decision to make his coat an separate piece was the right one, I just wish it fit a little tighter. The sculpt and details are nice, I especially like the hood. It's a shame there's no unmasked head and torso detailing. As fwoosheyman just pointed out, the sword does seem weirdly small.
Black Widow: For me Widow is tied with Thanos for the best of the wave and she's probably one of the better MCU 'mates that have been made, not that we're short on good MCU Black Widows. The tampos are good and it looks like all the details are present. The likeness on the face isn't especially good (or bad) but it's much better than on the Infinity War figure. Unlike most of these figures she's loaded with accessories. My only criticisms would be that the backpack harness is a little loose and her gauntlets are a bit large, the left knee is also quite loose on my figure. Still, this is my favorite MCU Black Widow and if I get around to making a non-continuity display this figure (with a hair swap) will definitely be in it.
Hulk: There's not much to praise on this figure: The tampos aren't very detailed, the colors are awful, the hair is wrong and missing any gray. I guess a smiling Hulk head is nice to have? Maybe DST had some concept art that makes this figure make sense but it's definitely not a great representation of the movie or any early art that I can find.
War Machine: Even though this is the Mk 6 this 'mate needs more bulk. I thought the Mk 4 from Infinity War was just mediocre for that armor but a similar design would have been nearly perfect for this figure. The angle the arm that holds the gun attaches to the chest piece means the gun is permanently pointed at a 45 degree angle downwards and it looks bad. Not sure there's a good way to fix this and it shouldn't happen at all. I hate the approach DST has been taking to movie armor helmets lately so I don't like this one, for what it is I guess it's okay. The Don Cheadle likeness is decent. The tampos are really excellent and I think this figure might is some of the best work DST has done.
Cap/Thor: Massive accuracy issues aside the tampos on the QR suit are very nice, I can almost imagine finding a use for it in another display since it's barely recognizable as coming from Endgame. It's too bad this figure (or any of the QR figures) doesn't come with a QR helmet. Having an unmasked Steve Rogers head means you can get a look that's vaguely accurate to the movie. His mask was obviously part of the inaccurate reference material, mine has the A printed off center. As PrinceCuseCuse said, Thor has no scar detail which is kind of a major thing. Stormbreaker, the main draw for the set, is very nice and seems to be the right size.
Rocket: The tampo is excellent. Otherwise this figure has all the strengths and flaws (especially the creepy eyes) of the Infinity War version and feels really light on accessories.
Iron Man: I generally don't like Iron Man being just a basic minimate body but I think it works fine for the Mk 85. Another excellent tampo, I do wish the arc reactor was a little brighter. My comments about Rhodey's helmet apply to this one too. The Stark head has an appropriate expression but the lack or gray in the hair throws things off. The gauntlet ends up feeling like a waste. Like the Mk 50 this figure is decent for what's there but it's missing everything that makes the armor or scenes in the movie where it appears memorable so it ends up a big letdown.
Thanos: As I mentioned before I think Thanos is tied with Widow for the best in the wave. I think the armor looks excellent, the only criticism is the little bit of missing gold on the helmet. I find the figure articulated enough to do what I need him to do. His ridiculous lawnmower blade is undersized significantly but I do appreciate that it gets some paint. Did anyone else get two? Not sure if that is normal or not. The purple used looks different than Infinity War to me but I don't have that figure handy to compare.
Overall what you think of the wave is going to depend on how you choose to evaluate it. As a representation of the movie it's pretty poor. As a collection of minimates it has some really excellent work and some that's quite disappointing. I'll probably end up re-purposing the good and throwing the rest in storage since there's not enough here to make an Endgame display worthwhile.