Well, I like edgy, Just because it's edgy, and i'm always around there because of Rcing, and it's easy to train FM There, also great access to furnace for smelting. I also like cathy though, as it's very close to farming patch, though not really necessary as in farming, I usually just do plants.
Now that Grand-Exchange is out though, may be helpful to do it there, as if you decide you need just a few more bows to fletch for example, all you have to do is open up the G.E instead of asking players to sell, or have to make the trip to the ge -.-
~Po