Favorite depends on what use you are planning to make of the gun. With that in mind here are my favorites:

Rifles
Fun: Marlin 1894 in 44 magnum
Match Shooting: M1 Garand
Social Work: AR-15

Handgun
Fun: Colt Mk IV Series 70 in .45 ACP
Match Shooting: Colt Mk IV Series 70 in .45 ACP
Social Work: Colt Mk IV Series 70 in .45 ACP
EDC: Makarov 9x18 with Makawrap grip.

Honorable Mention for just plain fun:
Ruger Bisley Vaquero in .44 Mag
Browning BDM 9mm
M1 Carbine
SKS
AK-47
All kinds of black powder weaponry.

When I'm not sharpening my knives I like to clean my guns...

Being a cheap bastid I like my Ruger Single Six because it shoots where I'm lookin'.

For Home Protection I try to keep my Colt Commander 45 ACP available but since I have grandchildren around alot now she's back in the locker most of the time.

However, my NAA .380 Guardian stays close and with Hydra-Shocks in it I'm sure she can get the job done within these walls.

My list would be to expansive to go into right now. I do love My Kimber Polymer. 13+1 of .45 ACP makes Daddy happy. I have a .40 Super barrel for it but unfortunately I could never get it to cycle properly, and Triton is now out of business. However, the .40 Super was strngthened .45 brass, cut to 10mm length, and necked down for a .40 bullet. It drove a 135 gr. bullet at 1800 fps, and a 200 gr. bullet at about 1200 fps.

It does not get much better than my vintage remmy 870police.

and incase you are wondering... Glock IS Perfection.

1911 Springfield 45
Ruger Vaquero 45 long colt
Winchester 30/30 lever action
12 Gauge shotgun New England firearms
357 Colt Python
Ruger 44 mag

1858 Blackpowder 44 Remington.

how could i forget the python?!?!!? it was in my head when i started writin my list. guess i'm just too hasty.

pistol: Glock 17 or 22 (9mm & .40s&w)

revolver: Ruger GP-100 (.357 Magnum)

rifle:
Steyr Mannlicher Scout Rifle (7.62x51)
SKS (7.62x39)


..shoot i tried to narrow it down to 1 pistol & 1 rifle. couldn't.

THe BEST guns hands down for battle is as follows:
Pistol: Glock 21 in 45acp
Shotgun: Remington 870 from Wilson Combat/Scattergun Tech
Rifle: Colt M4
Sniper (for battle) H&K PSG1

Those are all winners for sure. Since I am not currently in the Army, I'll have to make do with what I have:
Rifle: Bushmaster AR-15 Heavy Barrel Fluted, with ATS Scope.
Pistol: Kimber 1911
Sniper: none
Shotgun: Remington 870

HD those sound great gotto get myself a 870 on eof these days.

How do you like your kimber?

I like it as well as my SIG p220. I have a thing for 1911s. I have two little Mossberg 500 20 ga shotguns for home defense; one with a pistol grip on it. The 870 has the steel receiver and all, but the Mossbergs seem reliable enough.

Pistol: 1911

Rifle: AR, AK, Garand, Mauser and Marlin 1894 in .44 Magnum. Those are my favorites that I own.

Shotgun: I have an 870 but I'm not a big shotgun fan. I guess I like shooting trap but my 870 isn't really setup for that.