My vote would be for #3 as I still think, LBI is not LEO, it's backed by LEO yes, but it's another project, so I think it should not have almost the same logo as LEO.

But the "just-for-fun" one does also look very good.

And if there's a reason why a Lion should be in the design, then, I go for #2 as I like the lion in the SPI blue color very much too.