I prefer the original map orientation with the south-heavy landmasses. Just looks more aestethically pleasing to me.

As for the poles, one of the polar islands looks really tiny now. My suggestion is to either remove it or make it bigger (very easy to do, just move the coastline some distance away from the map's edge and whitefill the empty space). I don't really care whether either of them is connected to one of the continents.