I too favour SkyDemon. It is a one-stop shop for just about all planning. The only dislike I have of SkyDemon is that the half mil CAA charts are not available. Under normal flying conditions using SKyDemon to navigate, that is absolutely fine and provides an uncluttered view, but if you want to print out charts for VFR flying (or backup to GPS failure), then there just isn't enough detail on there.