I own an AR-15 based (Ap-74, ya ya ya, .22LR but it's fundamentaly the same crap design and that's why it's restricted) rifle and I hate the damned thing. I have used several different AR's and they are great if cleaned every 100 or so rounds due to the carbon, internals polished like a drug dealers rims, get fead premium ammo and don't get droped or hit anything with it.
WARNIN

If you can't take what you are about to read, THAN DON'T (you have been warned in advance so any personal attacks will be promptly reported to the Mods)
Take the AK for example:
- Can shoot the dirtiest ammo in the dirties conditions.
- Only needs to be put under a tap or get hosed down to get cleaned, then dunked in some motor oil (dirty or not) to lube and prevent rust.
- Shoots something more devastating (the VC hid behind trees and survived yet the US troops that did the same ended up it a bi hole in thier sculls and this has been documented) than the 5.56x45 and shares the ballistics of and is less heavy than the 7.62x51
- You can beat half a platoon to death (a bit of over exageration) just by using the buttstock alone.
- Had a chromed bore before the AR and the ones used in the middle east and Africa are shot-out, beat-up guns that the Russians were going to melt but decided to make some money instead.
-The gun being restricted has nothing to do with it being good or bad
-The AR is not the 1911 of rifles, since the 1911 worked very well with the worst ammo, can be easily field stripped while not having the fear of loosing something and didn't need to be continuously pampered (I have a 1911, I know!)
- The stock cannot be folded
- Less recoil, duh! Smaller cartrige plays a role in that one and not only the inline buffer tube.
- Yes many insurgents have been taken down by the 5.56x45 but how many rounds did it take per kill?
- Notice that Alies use the AR platform (they get for cheap) to show what they are
- Great for target but the AK is the KING (more made, more in use, and Canada made a big mistake my kissing the US's by switch from the FN's)
- I don't like the AR for combat but I like it for target.
- Don't own an AK but have a VZ and have spent many hours with AR's as well to know what gets the job done and what pokes hole in paper in an ideal setting.
- Never hunted with either but would not hesitate with either.
- Would I trust an AR with my life during an actual combat situation, I think not (well only if I have hours to clean and have clean ammo)
- The AR is the most modular thing out there, yes. But the AK and VZ (the things that the AR can be compared to due to the era) are as well
I don't want an AR for protection of life, but I will have one in 5.56x45 for paper. If I'd want to trust my life to a 5.56x45, only the SIGARMS PE90 would get my vote.