My friend owns both of those handguns (he's a sig guy)
I've fired them numerous times, I found the P229 to be more accurate (probably because its .40 smith and wesson)
If I was in your shoes, I'd buy my relative a hi-point and keep the sigs
all joking aside, I'd probably go with the P229 .40 sw, ammo is a little bit cheaper and its got good accuracy