1) 3m wetordry in various grits on either hard or soft surface. I have gone to the 3k range, but if you are careful and neat, 220, 320-optional, 400 and finishing on 600 with or without a light stropping yields a hearty, sharp and burr free edge that is fine and aggressive at the same time.
2) Freehand-- Atoma140 if blade is trashed or to reprofile, followed by dmt 3x8 diasharps extra coarse, coarse, fine, extra fine and double extra...Jason B gave priceless advice to another member about doing a clean job and stopping at coarse-325grit followed by 1 micron diamond paste on a strop (lightly though). I took that advice and the resulting edges are angry, aggressive, and perfectly apexed. The tooth level can be adjusted with the strop.
3) Worksharp Ken Onion with blade grinder and all the belts up to 6k.
Recently, I have been on a sandpaper kick and use that the most. Contrary to widely believed Internet lore, you can do a v edge on 3m. Just use an appropriate backing like those granite slabs you can buy at Home Depot. I do have an EP apex but I rarely use it because of the mess and the fact that doing a fixed blade bigger than 4 inches is maddening.