I understand the ai thing, but its pretty mixed. I honesty prefer the challenge as the ai is very predictable once your fg roots kick in, though there are characters whom are more aggressive than others. I suggest playing against those with lesser aggro until you catch up to speed. Honestly if you play them enough you'll learn how to handle them, or even learn a thing or two. Sets an incentive of beating that character & you'll be tons better after achieving this feat. The training dummy for example "bonus" is the perfect balance of an average ai.
As for your other question..
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