Do not come to me for advice, for I will say both yes and no. 8D;
Uhhhh. I don't know. With cosplay, it has to be what you're comfortable doing, and also which character you can act best, since it is costume ROLEPLAY. Think of who you look most like or could easily make yourself look like with wigs/contacts/etc, and who is most similar character-wise, and hopefully they're also a character you would enjoy playing.