Actually, by staying just below the next level, you gain more XP during the next adventure (even though you still have the wealth of a higher level character).Destil said:Unless your DM is smart and gives your party 5%-10% more XP than needed to be level X, which I tend to to so people aren't screwed by spending feats on item creation.
As a wizard, I try to stay behind before gaining even levels (since those don't gain you an entirely new spell repertoire like the odd levels do)