Yugi's favourite card is of course the Dark Magician!   

Kaiba's favourite card is the all powerfull Rare Blue Eyes White Dragon!

Joey's favourite card is one wo he relise on alot the  Flame Swordsman!

                                                                                                                                                                                 Pegasus's favourite card is one who is almost invincible because he can take the atk and def of any monster on the field then if he is defeated the monster who's atk and def was stole is destroyed this card is called relinquished!