Would you rather...

[Buffalobiian]

So let's spice it up a bit: food shortage, desperate times, need to feed your family of 4 who haven't eaten in 2 days. You have two options, would you rather eat your family's pet dog or a sewer rat?

Now that's not simply just animal vs animal, but an entity you know vs one you don't.

Pet dog vs Pet rat would be a fairer comparison, though not by much.