I really do agree, we need to be open that this is a relatively important decision and is beyond simple recommendations based on "certain general stated guidelines" and that they really need to do appropriate research to decide what is best for him or her. I'd stay with trying to give them as much information as he/she is interested in getting, but make it clear that I can't recommend what they should do without a reasonable amount of specific information. I do like sharing how much I like the Clarity and believe in PHEVs based on my own experience.