Old school Wizards were so awesome they just leveled more slowly. So a typical party would start to see a little separation. Old school Thiefs were so sad that you needed to play for years before your percentage rolls for hide and such were over 50%, so being a little higher level didn't mean much. I saw somebody talk about high level characters here, and my experience was high level characters were almost myths. I played AD&D for 3 years most weeks and only got to L9 before a new guy & PVP destroyed the party.
