I generally consider AJ's cast to be a bit boring, mostly because Capcom for some reason gives you less extra dialogue from presenting things to witnesses and stuff, which is one of my favorite aspects of the PW games (AAI's a little guilty of this as well, but it's a bit better than AJ).
Although I think AJ's biggest weakness is just crappy, crappy, crappy defendants, 4-1 aside. I dislike all of them.
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"So cold. I am always by your side."
"There ain't no gettin' off of this SuperNiceDog we on!"