i believe Landsknecht's still lose to a maceman..
Cataphracts are powerful but they don't receive defensive bonuses and can't get city raider promotions, plus pikeman are still matching there strength so it's not that easy to take a city with cataphracts if they have upgraded pikemen. it's also really a pain in the butt to get them early, the beelines and slingshots to cataphracts are a pain seriously, i've tried for hours to come up with a good strategy but there just isn't one. the best is to tech metalcasting then oracle slingshot to machinery then save your great engineer to bulb guilds and it still is a pain..
Oromo's are the strongest unit right now as far as i'm concerned, they start with drill i and drill ii, so you pop them out and have instantly drill i, drill ii, drill iii, drill iv, that's 4-6 first strikes, -60 collateral, and 10 percent vs mounted. you only get a small window to use them and you gotta beeline it but during that window you can take your entire continent its retardedly powerful.