A fair point, and I can agree with it. I was sort of just curious from thinking more or less about the song "It Doesn't Matter"? Using the perspective you've provided, I can agree. I considered this possibility even when I posted this. So, would you in turn say Mario is much more Se-Fi due to his known short temper?Sonic displays more Ti than Fi. He is geared by his senses and experiences (as all Se doms are) but he is also revved up by situations that involve high risk and problem solving (Ti) as opposed to taking an interest in people (Fi). Sonic takes a cynical and logical approach to any problem he's faced with, coming up with original/complex solutions to problems he gets involved in. He uses logic to analyse situations, problems, people, their personalities, vices, wants, weaknesses etc. and then formulates plans of action on the spot. He also uses this same information to tease/mock other people, specifically to elicit emotional responses that amuse him (Eggman, Knuckles, Shadow etc.) which is Fe, but he is still at a bit of a distance when it comes to his own emotions, preferring to leave them to one side (think about it, how often is Sonic actually acting on emotion?).