Lancet's
Dragon Knight Saga FAQ/Guide lists the rewards for the different quest solutions.
For the daylight robbery, you get a mindread either way giving you a stat point; the rest of the rewards are slightly worse if you fight the bandits, but not enough to worry about.
For Richard's second quest, you can simply delay triggering it until you've turned in all the goblin hearts you're going to get in Broken Valley, then side with the New Order (for the extra mindread).