Ugh T__T Two characters that I'm VERY apathetic to.
I was thinking of actually abstaining on this one. But I also don't like abstaining so I think I'll just judge on who fits the lightning theme more.
Ghost is just someone who just shoots lightning sparks from his body...and absorbs people's power. Not my definition of how a lightning guardian should be. And also he's just a copy of Byakuran.....with not much personality whatsoever.
Even though I'm not too fond of Levi (and his erm obsessive loyalty to Xanxus haha), I say Levi fits the lightning theme a little better imo...even though his powers don't seem very strong and impressive imo.