If you want a piece of WWII History, get the M91/30. Pick it out by hand if possible - quality varies as with any antique. Pre-WWII dates will have best fit & finish.
If you want a handy shooter, get the M44. For best quality, pay the extra for the post-WWII dated 'unissued' carbine. I use mine for deer hunting - works plenty fine in our Florida piney woods. Distances rarely exceed 80 yards. I have shot two inch groups at 100 yards with good ammo. Mine prefers the Heavy Ball, and my 180 grain SP handloads.
With my fifty-three year old eyes, accuracy runs about the same for the rifles and carbines.
So far I have six Mosins of various makes and models. They are like Lays tater chips - you can't have just one!