my favorite is Yugo (suprise suprise) after that the one with the worst win/loss record, Yuto. I wasn't the biggest fan of yuri myself, don't really like the "I'm the best, just try and proof me wrong" attitude he had
I meant the yu boy with the worst win, loss record. kinda sad tho. second longest in the eries as yu boy, worst win loss record and least amount of duels