At this point, it's probably...Ludwig? I've played so much Mario Kart 8 and Mario Kart 8 Deluxe it might have overridden everything else, since I never really had a main in these games. Maybeee Toad was my most common pick throughout the series, but I really always switched it up.
Wish MK8 would just bring back every character in the series. I want all the weird ones, like Petey Piranha in Double Dash and the Queen Honey Bee in MK7. And of course Funky Kong.
Feel the sadnesss of the Earth, and I close my eyes. And I'm beyond time now.