It is as much about quantity, as it is about location. At least with the front of a cylinder stove. The additional internal heat of a SS stove causes excessive "over draft". To deal with this, larger pipes are helpful, as is the additional intake holes on the front of the stove. Adding additional air at the wrong place, in either Ti or SS, will create undesirable burn conditions. This is sometimes done through bad design, both accidentally, and intentionally.
Longer pipes are good. If built right, 9' pipes in 6' tents work just fine. Spark arresters plug up, and I dont reccomend them, they can actually be dangerous. Prudent use of a good damper, with a long pipe, is your best bet.
To answer your question about which stove, I would say neither. While I am of course biased, scientificly speaking, the K-stoves suck. The other stove is just a K-stove knock off, at least by design. Though it is at least Ti. I am probably not giving enough credit to the damper design though, great improvement, based off one purchased from TiGoat. But its not balanced, or properly adjustable.