The 2015 knife has come up a few times. A 3 blade stockman with square bolsters was also a previous forum knife. That has been mentioned much less. I think I may be the only one that mentioned it in any of the topics... could have missed something though. So a double-end jack AND a 3-blade stockman have both been previous forum knives. Jacks have also been done on different handles.
It seems that there's some campaigning going on. But maybe we could take an objective look at the top options.
Stockman
(Positives)
1. Iconic Buck 300 series knife
(Negatives)
1. 3 springs instead of 2 (this could be argued as minus or a plus)
2. Regular production pattern that is readily available for less than half a forum knife would cost
3. A premium 301 with premium steel already exists. It was made for BCCI. You can buy it now.
4. A stockman was a previous forum knife
2-blade Jack (same side)
(Positives)
1. New for the 300 series though it's a classic pattern
2. Jacks with 2 springs are typically same side (though present day manufacturing sometimes puts each blade on a separate spring).
3. Less expensive than 3-blades
(Negatives)
1. No liner, washer, or spring between the two blades
2. Since the main blade is also short, both blades would be shorter than the handle and there would be empty space on one end
2-blade double-end Jack (opposite sides)
(Positives)
1. New for the 300 series though it's a classic pattern
2. Less expensive than 3-blades
(Negatives)
1. Jacks with 2 springs are typically same side (though present day manufacturing sometimes puts each blade on a separate spring).
2. A double end jack was a previous forum knife (except it had a more typical single spring)