I've always liked the Enfield #4. Great rifle for the $$.
1. Good sights (hunt around and get the adjustable ones instead of the flip over peep sights)
2. Reasonably accurate
3. Ammo isn't terribly expensive
4. Lotsa cool accessories for it
The 91/30 is another good choice, but I don't like notch and post sights as much as peeps. The M-44 is a great little carbine, but has an incredible muzzle blast and flash. Never had any experience with a M-48 (yet).