I would balk at only one point in your post... how did Franko get to be on your shortlist?
Franko is sadly one of those coins that would feel like putting down a lame horse that really gave it his all. From everything I have read it has been a pretty honest coin with a community of good crypto folks. But man a market cap of under 200k? Just aint gonna happen EVER and is taking up the time and passions of hundreds of devoted followers. Needs a bullet in the virtual head to spare the remaining few their drawn out death of a thousand orphaned blocks.
It doesn't really matter where you draw the line, just publish what the requirements are and if a coin drops below the line, pull the trigger and don't look back.
Except the orphan issue is dead... Gravity Well has been implemented... and new life is showing in Franko... no more big miners waiting to rape it, and no more dumpers... value has doubled since the change hit and several exchanges have taken notice and added the coin. While it may look like Franko is on that line, upon closer inspection you might see the dark horse that has done all the right things quietly, ready to make a mainstream push for broad adoption.
http://www.frankos.org/ take a look. I would say now, more than ever, Franko is fortifying itself for the future versus the rest of these failing coins.