I once saw the JLA statted out by somebody in 3.0 terms, and Clark was LG, Diana was NG and Bruce was CG. I was like, "LOLwhut?" (That, and Bruce had a higher CR than Diana, and the lasso was not even an artifact, and Bruce had no rogue levels, so it wasn't like the whole thing wasn't clearly on a dozen kinds of fail-y crack to begin with, but it was the alignments that really had me facepalming, because mechanics are variable according to the needs of plot, but personalities are not that hard to track, y'know?)
post-IC she's been much more of a warlord than a paladin
Post-ICk she's just a half-celestial with a good BAB; she's broken faith with her gods, her Truth and her code, and the RAW is quite clear on what that results in. She should look up Rama, who could be pretty believably statted as a cleric, and ask him for an atonement. (If you know what I mean, and I think you do.)