Technically the Warriors of Darkness were meant to be our equal, in so much as they were essentially dark counterparts to us and specifically anointed by Elidibus for that very purpose (especially as they were evil versions of 'Derplander' and his party, the nameless party who represent the player's character in official trailers and propaganda for the game since version 1.0)... but even they couldn't truly match us as equals,
being dead and all and from a parallel Hydaelyn.
Power wise Zenos did successfully manage to match us on equal terms,
fighting us twice to a draw (both times he really didn't 'win' as more simply walk away from boredom in the first fight and the second third parties showed up and evened the stakes, again making him withdraw out of spite), and only 'defeated' us by using some random plot coupon for instant victory. But he lost points by scaling up with Shinryu, which opened him up to a fatal weakness - we're the 'Eikon Slayer' after all, so he basically lowered himself in a way at the end, Shinryu's own immense power notwithstanding.
So really, at this time I don't think there really is an equal in terms of power to the Warrior of Light on Hydaelyn.