Thinking years ago back when the first photo of Brandon Routh in the Superman suit was released. I remember thinking how excited I was. I was more optimistic back then. I fooled myself into thinking I liked the suit--when in fact, I didn't. I was just excited we were getting a new Superman movie regardless. Firstly, that awkward "S" design and its very small size is what turned me off. Yet in 'Superman & Lois', they're going back to the small "S" after all the complaining? That's a big step backwards if you ask me, but I hope the producers increase the size of the "S". The producers of 'The Flash' have adjusted the mask for each new Flash suit at least 2-3 times. Particularly the eye holes and the yellow streaks. S6's mask upgraded just before Crisis premiered if I recall, and by then, I thought the S6 Flash suit design was absolute perfection.
Back to the Superman's suits though...in BvS, they reduced the size of the S too, while I really liked the larger "S" size in MOS, from some angles, you could argue it was maybe too big and took up too much space on Cavill's chest, making him appear less massive than he actually was. You could also argue the larger the "S", the skinnier Cavill appeared too. From other shots and different angles in MOS though, Cavill did appear to look massive. Somehow though, I think the smaller version of the "S" in BvS helped make Cavill look bigger, but that may have also had to do with how they changed the position of his cape liked from the top of his shoulders. The designers probably lowered his collar as well. All in all, I think the position of the S and the way his cape line looked on Cavill's shoulders looked perfectly well-put together. I think the smaller boots and lowering the belt buckle made his look shorter though. Aside from that, I liked this version of the suit.
As for Tyler's new suit, I like it just fine. It's a huge improvement over the original suit he wore in from 'Supergirl', albeit...the only thing I would change at the very least is adjusting "S" size. Nothing more. If there's only one change they could make, I just hope they change the size. That would be all I ask for. If there wasn't anything wrong about his original suit Tyler wore in Supergirl, it was the "S" size. They did that right. The cape shoulder plastic cuffs were dreadful. I liked the idea of the cape shoulder touching the sides of the "S" emblem, I just don't think they did a good job at designing the concept. I think they should have used the polyester part of the cape touching those yellow-brackets, instead of those red plastic things. Those red cuff shoulders were a huge distraction. Since "Superman Returns" though, I have never been a fan of the smaller red boots, though that's a minimal thing. Still, why the shorter neck collar? That's like 'Superman Returns' all over again. And the cape coming down from the neckline instead of making an upward curve over the shoulders? Okay, in conclusion, I don't hate this suit though and I think it's fine EXCEPT FOR THE SMALL "S"!
Now, can we talk about Brandon Routh's two Superman suits he wore on screen again? So as I mentioned before, when the first photo of Brandon in the suit released for 'Returns', I told myself as I kid that I liked the first suit, only to realize years later how much I in fact, disliked it entirely. Aside from the small "S", the texture of the suit--especially the cape...brown-red...hardly even red, looked terrible. Throughout the third act of the movie, Brandon's suit looked so dark-purple or brownish. It did not look good. I liked the belt buckle and 3D parts of the suit, but everything else was bad. Brandon's hair looked a bit silly. Could have given him sideburns. I think the hair-part would have looked way better on his right. Those boots looked dreadful. I think what I hated the most was ultimately the cape looking heavy, brown, made of rubber, and the way the cape came down from Brandon's tight neckline on both sides of his shoulders looked crappy. And Tyler's suit looks similar.
But flashforward to 2019 in "Crisis"--wow, Brandon looked more like Superman than ever in that Kingdom Come suit, even more so than Cavill. The bright red colors, the proportions of the S, and the size, his neckline, shoulders, even even the red briefs (although I gotta admit, it was very on-the-nose) made an overall beautiful suit. I can't say that all of the 'Returns' suit is bad, it's just by comparison, the Kingdom Come suit is far superior and really stands out as Superman.
If only 'Superman & Lois' had gone for something closer to that concept. On the subject of the red briefs though, I was looking at images of Christopher Reeve in the suit recently, and I have to say that I wasn't always conscious of the red briefs on Reeve's costume, whereas both suit versions worn by Routh, his red briefs are completely noticeable and somewhat distracting. Very on-the-nose. As classic as the Kingdom Come suit looked, those big red briefs still pop out a little too much.