In regards to conditioner, it will not do anything for the (finished) leather in your Pilot. While you may have leather seats, they are not exactly what you think. They are actually leather with a vinyl topper. Thus, the best way to protect your leather would be to use a product that you would use on your dash.
I personally have a Lexus and a Toyota, which also have finished leather seats, and I use 303 Aerospace Protectant - it has the highest UV protection on the market, meaning that your leather will not suffer from fading due to UV from the sun (it has an SPF of 40)
Just a little test to see if you have finished leather or unfinished leather, simply put a small drop of water on the seat itself - if the water has not soaked into the leather within about 30 seconds, you have finished leather - if however the water DOES soak in within 30 seconds, you have unfinished leather, and I would recommend using Lexol leather conditioner - great product and a great price.
Hope that helps