Seems like everything good is coming from BLX, and ICN became obsolete? I am not sure, but that is what it looks to me right now. I really hope something happens to it though, hopefully the burning of ICN with profits will drive the price up.
Except that ICONOMI will not be using BLX to "burn", in fact it is not possible to burn BLX tokens since its a dynamically changing total number of circulation of the token based on the performance of the funds and possibly to keep up on sync with the traditional stock exchange market's price. ICONOMI will only be using ICN for buybacks and this alone gives it a great utility, not counting that ICN will have a utility for DAA, etc.
Even if whales were to want to sell lots of ICN's for like a dollar each, the fact that ICONOMI will be doing consistent buybacks should guarantee that the price of ICN should go higher in the long run.
So, what I would do is that I would diversify between ICN and BLX, never ignore either one of them because each has its own potentials.
disclaimer: This is not investment advice, this info is provided as-is and I make no guarantees. Always do your own due diligence before following any determined course of action.