We have a 2024 Odyssey and a 2024 Elantra N.
I can tell you that the Hyundai LKA is definitely superior.
Hyundai’s LKA has a longer time interval between when it prompts you to “steer”. And, it’s capable of applying more steering torque/angle. It will steer around turns that are sharper than what the Odyssey is capable of. It also operates down to slower speeds than the Honda.
Overall, with the Hyundai system, the car is just more “locked in” to the lane.
The Elantra N has nearly zero incidences of “drifting out” of the lane, or “losing its lock”, while the Honda system definitely does have this happen occasionally.
I’d say, overall, the Hyundai’s system just feels newer and more refined, and just works a bit better and less obtrusively.
Can’t comment on adaptive cruise difference between the two, because the Elantra doesn’t have it. The Honda’s system seems to work reasonably well, though I have nothing to compare it to.