Earth Mental Ino/Shika/Cho is incredibly consistent with Power of the Trio. Only Pakkun gets in its way.
Void/Water has been a favorite ever since S27 came out.
Wind/Water Shimon Control is way too fun.
Most recently, Lightning/Wind is pretty fun to pilot between the new Disaster, Gencon Sage Mode, Wind's ridiculous healing and drawing, KBv2, and Tetragram. Not really top tier, but still really enjoyable to play.