Well, I'm in Steem for the long run, if I was in your position I would hold a large percentage in Steem and convert it to SteemPower, and convert a smaller portion to BTC. Reasons I would hold the SteemPower this makes your voting power more in Steem, and thus keep you active here making more Steem, but that is something we need more of active users. So really it is a hard choice, either way I would say stay active here and you will be making it worth leaving as SteemPower