Here are the next fifty match-ups. Like before, I'll also except ideas for motivations from the comments below.
51. Jenny Wakeman vs Robotboy (My Life as a Teenage Robot vs RobotBoy)
52. Jake Long vs Juniper Lee (American Dragon: Jake Long vs The Life and Times of Juniper Lee)
53. Daredevil vs Scarecrow (Marvel vs DC)
54. Giganta vs Ginormica (DC vs Monsters VS Aliens)
55. Robin vs Hit-Girl (DC vs Kick-Ass)
56. George vs Tarzan (George of the Jungle vs Tarzan, Lord of the Apes)
57. Imperiax vs Galactus (DC vs Marvel): I don’t think Galactus would be happy if the galaxy was destroyed while he is eating.
58. Iron Man vs Batman (Marvel vs DC)
59. Timber Wolf vs Wolverine (DC vs Marvel)
60. Sentry vs Superman (DC vs Marvel)
61. Thor vs Captain Marvel (Marvel vs DC)
62. Attuma vs Ocean Master (Marvel vs DC)
63. X-23 vs Dani (Marvel vs Danny Phantom)
64. Kevin Levin vs Absorbing Man (Ben 10 vs Marvel)
65. Solomon Grundy vs Jason Vorhees (DC vs Friday the 13th): Grundy invades Crystal L