Honestly, looking at all three of those, it's almost a pick em. Was just reading the Apex description, and they all seem to read similar for the most part.
Since half the fun is playing, I'd start with Apex or HHD. Then try Nova 2nd since they have the import feature. Saves setup time. The 1x1 widgets in the dock seems to be a paid feature in all of them.
The configurable drawer doesn't matter much to me. I'd rather just create folder categories on the home screen, be it more dock folders or one home screen section with four or five folders along the bottom row.
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