IMO, SKS with hollow points or frangibles ($$$). Not soft points or FMJ's. Shotgun with buckshot or BB, best of all of course.
10/22 only if I had nothing else or was expecting an attack by rabid squirrels. BTW, most of those aftermarket 10/22 magazines are total crap and will make your 10/22 a jammamatic. I don't think 50 rounds of spray and pray makes sense in an apartment either.