I'm going to keep this short because it is a bit difficult to sum up four seasons of individual WWE biographies. But I have to say this about "WWE Legends": it is hands-down the best biography series I've ever stumbled across. Not just for professional wrestling--but for any topic.
This isn't just a bland formula that each story is grafted upon. Instead, every figure is given in-depth treatment and a personalized approach. Though of course featuring the in-ring and even out-of-ring stories that wrestling junkies will eat up, the emotional factor is what really garnered every episode no lower than 8/10 stars from me. As a child, these figures were my sporting heroes, yet at that time I of course had no idea the types of personal and physical sacrifices they were going through for my entertainment. On multiple occasions--almost every one, if I'm being honest--I was brought to tears by the tales of tragedy and triumph in equal measure.
Though of course a series like "WWE Legends" is going to most effortlessly appeal to 80s/90s wrestling fanatics like myself, I also think it can be enjoyed by a wider audience. The stories here are easily compelling enough to draw in even casual bio fans. As far as that genre goes, this is about as good as it gets across any subject.