It seems that in the past 78 years I have fired them all.H K 91 & FN-FAL are jewels but so is the M1A1,M-14 some AR-15 & 10's will do in a crunch.
Anyway,it depends on how you define "battle".
There really isn't a battle rifle.
In WW 1 Sgt,York killed 32 Germans & captured 136 up close & personal with a Sprigfield 1903 5 shot bolt action 30.06 rifle.
Me,I'll stick with my M-1 in .06 and .45 1911 A-1 Colt.
I have a 1938 Swedish Mauser in 6.5 for talking long distance.
And my grand paps trusty Winchester M-97 12 guage pump with double ought buck.
IIRC, Sgt. Alvin York carried an M1917, not an M1903.
Re: "In WW 1 Sgt,York killed 32 Germans & captured 136 up close & personal with a Sprigfield 1903 5 shot bolt action 30.06 rifle."
In the Gary Cooper film, his York used a Springfield. In reality it was a P17 Enfield 30-06 York used...