Hunting Deer would be much better with an SKS over an AK-47. The "hunting deer with an AK-47" is played out.
Yes, but also no...
I don't necessarily have an issue with you deciding one weapon is better than the other, it's the "played out" comment I don't like (just my opinion).
If you're looking for a "best" option for deer, it's likely not going to be any non-bolt action firearm (IMO). I'd also argue that the caliber choices in any of the .223 range are far from "good" when it comes to hunting deer.
I've hunted deer successfully with my .22-250, which has substantially more punch to it than any of the .223's, even though it fires essentially the same bullet. Is an itty-bitty 55gr or so bullet, that will perform just fine on even large whitetails out to several hundred yards
if you make a nice clean broadside shot. I just shot 2 nice whitetails with my .22-250 this fall. The one that went the furthest went less than 50 yards, and left a wonderful blood trail.
I'd still consider that to be way, way, way "down there" when it comes to choosing an effective deer caliber though.
On the other hand, I absolutely love hunting deer with muzzle loaders, and my .54 flintlock is my number one "go-to" choice for deer hunting over any other rifle I've ever seen or heard of. Of course, I'm not basing that entirely on effectiveness. My .54 flintlock pistol is my second choice firearm.
I also LOVE hunting deer with my longbow and wooden arrows.
Heck, the vast majority of my hunting is with a hawk or falcon catching rabbits, squirrels, ducks, pheasants, crows, or pigeons. I'd much rather hunt with a bird than any weapon at all.
Fortunately, we aren't limited to the "best" or "better" choices when it comes to hunting.