I've already expressed my point of view, but if the Hive price drops to $0.1 I would go with 5th option (maybe powered down some HBD to buy more Hive)
We could use the Hive Power to use for other projects, but I wouldn't trade any Hive for Leo or any other H-E token.
HBD has proven to be the safest of Hive ecosystem investment, however we ought to remember there's a haircut rule that when kicked in will result in complete depegging. So by using some HBD to buy some Hive off the market we will secure the price and by this we will secure our sweet HBD APR