Well, it's dependent on what you want. After having done all 3 for the achievements, I always pick love because it's the only one that gives you anything continually useful, your dog. At this point you are usually making enough money that you don't need the wealth option. Even if you aren't making good money, you will, so there really is no point to the wealth other than staying in character if you are evil. Sacrifice get's you a statue in Bowerstone, nifty, but after going to see it once, I don't think I ever went near that area again.
Love at least gives you the dog so you can still dig up items and finish the archaeologist quest.