Two people looking - one for revenge, the other for justice.

Bromance created in times of need. Good path toward resolution.

Rookie vs. experienced person dynamics, plenty of action, very interesting - and independent - women. (IMHO both dramas pass the Bechdel test with flying colours.)

MC is given a second chance at life in a setting that's different / can be changed. MC is a part of the legal system (police officer/prosecutor) and knows more about the world he's moved to than the rest of the people around him.

Very good main leads, in both cases.

Similar starting point (keep in mind it's a regular trope in revenge stories), similar team-of-heroes story, though it'll definitely diverge (Rugal has super-powers, AML probably won't).

The forces of good are fighting the forces of evil, one of them will prevail in the end.

Both are sports dramas. PRIDE focuses more on the star players, HSL seems to focus on the management of the team.

Both involve a fair bit of play (PRIDE on ice hockey, HSL on baseball) - pretty engaging on both dramas' sides.

Again, falsely accused MCs, prison life (TW for rape in the movie, for OOD is still too soon to know what's in stall for the people implicated), deficient judicial system.

Differences (so far, the drama is only in the first quarter): FC is a lot more action-oriented and involves escape.

Falsely accused MCs, prison (lots of prisons), defective judicial systems, police/prosecutors fabricating or neglecting evidence. And good actors. "Defendant" is a lot more melodramatic, I expect "One Ordinary Day" to try and keep it more together, for the sake of being more noir.

Nature is wild, man is wilder.

Both series involve rangers/police officers fighting off dangerous people in remote parts of natural parks / the border.

The stories are gritty, there are a lot of subtle details that you have to pay attention to, the cinematography is superb, the cast and crew definitely know what they're doing.

Recommended!

The background is a detective story plus thriller, the MCs are kind of cold and unapproachable by most people, they both deal with an almost Impostor's Syndrome situation over and over again (except they don't doubt themselves, just don't fit in, for reasons).

There's quite a bit of similarity between the endings of the two dramas, too (can't tell more in order not to spoil them.)

Also, the acting is through the roof - you've seen the male leads together (Lee Joon Gi and Jung Kyung Ho) in another rather good drama, Time Between Dog and Wolf, and they nailed it there, too.

Both dramas feature an unlikely pair of detectives with their own hidden agendas to solve, who throughout the series grow closer and act together in the interest of serving justice. They both also have to deal with a series of crimes related to their own pasts, and are linked through those crimes, even if they don't appreciate that.

BE's soundtrack is a bit more atmospheric, TGD has a bit more romance, but they're rather similar in tone and storytelling. I found both to be good stories in their own right and deserving of a watch.