I've got SKS, an AK, a FAL, a Garand and a couple ARs that I built myself. My favorite all around target, plinking, home defense rifle is my M16A4 style AR.
The Russian guns are cheap to shoot, really tough and probably wouldn't jam if you threw mud in them, but they aren't very accurate (a mini-14 would probably shoot better) and let's face it, I baby my guns. I don't need an rifle that will keep shooting with no maintenance. I always take care of my guns.
The FAL is really cool and it is a very powerful weapon. There's a lot of firepower in a .308 rifle with a 20 round mag. This thing will chew up cement blocks without breaking a sweat. However, it's not extremely accurate either and it's kinda heavy. Really fun though!
The Garand is a tack driver, especially with match ammo. I had this one rebuilt and converted to .308 for a sizeable sum. I love this rifle. However, .308 really is overkill for any serious social use in my area of the country. I do love having these battle rifles in my safe for "just in case" though.
The ARs are the most accurate and the most fun. They are light, handy, easy to shoot and obviously adequite for self defense. The military and police have both been using 5.56 rifles for decades. As an added bonus, the AR's modularity lets you take your basic rifle and turn it into anything from a .22LR plinker to a 9mm carbine to a handy .223 carbine to a long range SPR by just swapping uppers. I have a dedicated .22LR upper for mine that I use to practice in my back yard. On this upper here, I have an Armalite scope mount that I can swap onto the rail in place of the carry handle. I can shoot a while with open sights, then swap on the scope to shoot with optics a while, then swap back. All without losing zero. This rifle is the king of versatility.