I like Swift scopes. I've got one on a T/C contender that has done great work for about 5 years. It's ridden on everything from a .22 to a .44 plus a .30-30 , a .35 Rem. It cost my $90. I'll admit to buying it because it was cheap, but I'll buy another when I'm in the market for a mid-range hunting scope.
On the otherhand, I know NOTHING about Sightron scopes, so it's a pretty biased opinion.