If "winning" means killing someone in cold blood and ending up convicted for first degree murder, with a stay in state prison for life, then yeah, Arias certainly hit the jackpot there. She may also earn a spot on death row.
IME, comorbid Cluster B personality disordered people wouldn't see the situation quite like 'normal' people do. She's quite likely to
fervently believe she will beat the DP, society at large will see the victim she so clearly is, and her 'wrongful' conviction will be overturned on appeal because she murdered Travis in self-defense.
I'd be absolutely gutted if I were incarcerated. The loss of freedom scares the hell out of me. But for someone like Arias, it's viewed as a temporary situation, easily adaptable. The high-profile nature of this case feeds her narcissism and her belief that she's a lot more important than she really is. IMO, she absolutely believes - to the core of her being - she will one day be free. In the meantime, she will continue to manipulate where and when she can, to include Travis' family, because it's fun to her. She feels like a mastermind, the queen of the chessboard, and all us lowly humans (to include attorneys, judge, family, friends, supporters, etc.) are just merely her pawns. Other people are her playthings - she'll engineer and manipulate situations just to get the result she desires.
So yes, she
believes she will win. We know better.
JMO and FWIW
ETA: Something rather scary to bear in mind when it comes to figuring out Arias...she feels
justified in taking Travis' life. In her world, she really isn't guilty, because he deserved it. IMO