As the owner and fan of Springfields, I'd advise going with your Browning. Not because they are a better gun, just because there are so few good Springfields left.
If you have access to one that's been hacked already, go for it. You won't be disappointed.
But to take an intact military one and sporterize it, in my opinion, would be a shame.
In any case they are both good rifles. The Springfield has the advantage of about 60 to 80 years of experience over the Browning, but you wouldn't wear either of them out.