I like the Russian SKS's the best. They also bring the best price with the exception of collectables.
One potential downside is the Russian SKS's don't have chrome lined bores. Just make sure you do a through cleaning after firing corrosive ammo.
Hot soapy water is the best to clean residue from corrosive ammo. When clean rinse with REALLY hot water, dry and lightly oil the bore.
Have heard that some guys use Windex after shooting corrosive stuff, I have not tried it.
Freedom is not free