I dont like them both, but i think Jessica "looks" like a better person and dont take what i said as a compliment to Jessica
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But, hey... we cant be sure they are like that in real life, i mean, Jessica in the show is a little bit dumb but when the show was starting she said on E! News that she is acting a little bit because the show producers told her to be like that, so i honestly dont think we can judge them for that.