Take modifiers and abilities. For instance having an odd number in an Ability is a bad idea. No one explains this to you, and the "suggested stats" and even party characters have poor stat distribution.
Further to that, it is actually good to start with an odd number in some stats. Later on, when you get to the appropriate levels, you get to add 2 points to those stats. If they are odd, you can raise two stats at the same time to levels that gain better bonuses.
This is something that people new to D&D need to know.
