My favourite base is on a big fairly flat rock, just off the coast, 50 yards from Haldor. Haldor's bubble camp is located on the mainland end of an isthmus that serves as the path to my base, so it serves as a buffer between my rock island base and The Black Forest. The only creatures that spawn near my base are a couple of deer.

The base where I grow all my produce, is located on the edge of a meadow bordering the plains on one side and the swamp on the other. It was a Draugr Villlage, and it is perfect for growing everything because 2/3 of it is on meadow and 1/3 on the plains. It also has a well situated ravine on one side, and a ship grave on the other that acts as a buffer between my base and the swamp. I added a about a dozen spiked corewood pallisade fence pieces to the pre-existing fence. I keep my various workbenches & base structures in separate buildings, so they are far enough apart from one another to prevent raids from triggering.