Only thing the SKS has going for it is the position of the safety and last shot hold open.
Most AK's are going to have a better trigger, especially Chinese guns. That is important for new shooters. Lots of magazine choices for AK's too from 5 to 100rds with a flick of that finger. Both are clean from the muzzle propositions, similar sight radius, similar aftermarket stocks/furniture options. Actually slight edge to the AK there. Take down of each involves an action cover, upper handguard, bolt carrier and bolt. SKS bolt can be reassembled incorrectly turning it in to a slam firing runaway machinegun, not a fun ride! SKS fire control group is unitized but no US ones are available and individual pieces are difficult to find. Also most need "fitting" (trial and error filing/grinding). Lots of individual AK spares available.
I would say the AK is better based on trigger, magazine and spares options.