I'm a big fan of Athlon. See TSS Outfitters or Guns Midwest for the best prices I've seen. At TSS the Argos BTR FFP 6-24x50 is $297 and the Helos BTR FFP 6-24x50, which is my choice, is $451. Neither have zero stop, though the Helos has locking turrets.
Lifetime warranty too.