No problem jhd1, my mod is still in beta, and things could change.
In the case of Riddler, he has the same reasoning than Batman: 600, he has the attribute puzzle maker level 3, so normally he has six rolls against eight for Batman (Well known + detective level 2). Batman has a better chance to win, but he's not guaranteed a win every confrotation. If I had to choose between increasing Riddler's reasoning (even by 5 or 10 points) or Riddler's Popularity. I think I'll go with increasing his abilities because a popularity increase could have some side effects, like being better in fighting.
Also I try to balance the game for the other characters, a challenging game for Batman could turn to a nightmare for other low level characters.
Adapting a rich and diverse universe like DC for a mod (and more generally for games) is not an easy task and sometimes you must do some compromises that you would never have accepted at the begining. Even if it's a challenging work, it's also a fascinating task, and I'm always interested in how other people are doing their mod (even if they choose a different path).