I’m not caught up on S5 of My Hero, and the show starts declining in the second half of S3, but boy does it start well
S1 is a good fast paced introduction
S2 is a perfect season of anime. The tournament arc is flawless, and Stain is another fantastic arc. At this point, the show is not only developing characters well with excellent pacing and action, but also is doing a great job of questioning the world it established via Todoroki’s backstory and everything Stain is about
S3 starts with a bang with the camp getting hijacked leading to All Might v All For One
again things start to decline from here a good bit IMO, but how many of the big long Shounen have had such a consistent and strong opening 50 episodes?