No question in my mind. If this is your first mauser, and you want a pleasant rifle to shoot from the bench, with readily available ammo, lots of aftermarket accessories, very good resale value, and also extreme effectiveness as a hunting round, then go with a 96 Swedish Mauser (6.5 Swede) in at least very good condition. After you master this, if you still want another mauser, then get a 98 military mauser in 8mm. But, I'm betting that you won't like it anywhere as much as the Swede.
Best,
Mannyrock