James Fury scored two tries for unbeaten Aberdare in the South-East and Fairwater are with them on 18 points after keeping their record with a surprisingly close 10-6 win at Llantwit Major.
Mold failed to go top in the North as they drew 9-9 at Colwyn Bay while leaders Llangefni sat it out and their 12 points was equalled by the home wins of Llandudno and Caernarfon.
Pontllanfraith rocked leaders Crumlin in the East by 15-6, but they remain ahead as Newport HSOB had a great win at Tredegar Ironsides by 23-8 and Monmouth fell by 22-19 at Oakdale.
All the West clubs have lost at least once, but all the four clubs on 15 points - Laugharne, Neyland, Cefneithin and Amman Utd - were winners.
The big match in the South-West involved unbeaten clubs Resolven and Burry Port, but visitors Resolven came out on top with a powerful 31-15 victory.