These 2 Deathstroke designs are top tier and there's barely any competition imo.
More often than not Deathstroke designs kind of just fall into boring armored merc suits. Injustice, every live action depiction, arkham, even in a bunch of comics. Deathstroke 2014 is a close contender, but can't beat these 2.
The classic Wolfman and Perez design is great, and while some aspects of it (the spiked collar) don't really translate well into more modern stuff, it's still damn near perfect. I love when his eye is revealed.
Priest's Ikon design is a fantastic modern suit for Slade. The white arm really stands out and I love how it feels a little unfinished. You know, because it's a prototype. Both this design and the classic are just iconic. So damn memorable.
The new run has been fine so far but I definitely don't care for the suit that much. And it's not that it's bad, it just doesn't really feel that special.
But of course if there's any other suits anybody thinks contends definitely let me know. I am a super larper.