Mad Professor
Deity
Have you compared settling pigs first with the other options?
I haven't done any testing where I was really paying close attention to micro, but I have done both pigs first and elephants first. I found the elephant site quite good - 3 grassland elephants really does add up to some good gold and excellent hammers. However the power of the pig site is the ability to recover quickly from the whip.
I'll try a couple more over the next day or two paying more attention to micro - I'm thinking the farmed bananas might partly compensate the elephant site. The whip would have to be used a little less, but the result might be another archer or two produced in between putting out the two settlers in say just a few turns more. But I'll have to play it to compare better.
I'd be very interested to know what Hawk comes up with also.