The highest AK skills. I can instantly (no progress meter) nibble a piggy using keyboard shortcuts, twice. Drink a gurly drink and I get 5 minutes of completely free nibbling, 8+ meats per pig. A stack of meat is 600 energy available in less than one complete suburban street - again, completely free with one drink that the piggies often end up giving me back! Combine that with the great grain to meat conversion ration of RHK and I have more meat than I can eat, almost more than I can carry.
Its rube all the way for me at the moment. Munch it all the time and call him at every chance. But having only 3 skills left to learn, I have a blip about mining or farming or making food and stuff to sell to complete my cubimal collection.
I'm crazy for HTP (herbalism-tincturing-potionmaking), but find that I have to supplement my income as the potions don't sell especially well. So, I do a little bit of everything. I take pride in crafting everything that I need myself, a self-sufficient glitch if you will.