Any personal preference I have for dogs is because they're cuter than pigs are, which seems like a bad way to make moral decisions.
I think you've deliberately muddied the waters by throwing in the word 'cute' there. You justify your general rule for preferring some lifeforms to others by saying you value 'consciousness' but then say that preferring dogs over pigs for 'cuteness' is not a good way to make moral decisions. If you take away the loaded words all you're really saying in both cases is that you value animal A more than animal B because it has more of property X. When X is consciousness that's a good justification, when it's cuteness it's a bad justification.
I'm quite happy to just say that I prefer some animals to others and I value them accordingly. That preference is a combination of factors which I couldn't give you a formula for but I don't feel I need to do so to justify following my preference. In the case of dogs I think it's more than cuteness - they are pack hunting animals that have been bred over many generations to live with humans as companions (rather than as livestock) and so it is not unsurprising that we should have affinity for them. Preferring them over pigs seems no more problematic than preferring a friendly AI over a paperclip maximizer - they share more common goals with us than pigs do.
Given the low probability of me actually going through with donating $1 more to charity just because I bought a $1 cheaper chicken, I'd probably take the more expensive one, though.
That's not a very rational approach. If it's easier, think of it as $150 a year (probably ballpark for me based on my own chicken consumption) and consider what charity you could donate $150 extra to. In my opinion being rational about personal finances is a pretty good starting place for an aspiring rationalist.
I don't interpret "consciousness" as a preference giving some animals more value to me than others. I interpret it as a multiplier that needs to be used in order to even out preferences.
Let's say I want to minimize suffering in a target-independent way, but I need to divide X units of torture between a human and an ant. I would choose to apply all X units to the ant, not just because I like humans more than ants, but because that decision actually minimizes total suffering. My wild guess is that ants can't really suffer all that much; they probab...
I have noticed that among philosophers, vegetarianism of one form or another is quite common. In fact, I became a vegetarian (technically a pescetarian) myself partly out of respect for an undergraduate philosophy professor. I am interested in finding out if there is a similar disproportion in the Less Wrong community.
I didn't request that this go into Yvain's survey because I want more information than just what animal products you do or don't eat; I'd also like to see nuances of the reasons behind your diet. There are a lot more shades than carnivore/vegetarian/vegan - if you want to be a vegetarian but are allergic to soy and gluten, that's a compelling reason to diversify protein sources, for instance. I'd also like to hear about if you avoid any plant foods (if you think they're farmed in a way that's environmentally destructive or that hurts people or if you have warm fuzzy feelings for plants, maybe). Here are some questions that come to mind: