Not so much a question of good, just the savagery. He literally tore men's heads of and drank their blood. He displayed in DK a greater strength and potency than I've ever seen the character do pre Nu52 except when having fed descendants of his line ( usually doing that healing him from injury quickly and gave him physically amped status for a while).
Pre 52 Vandal has combat skills ( allegedly) but has never really shown them. He's always preferred the Machiavellian orchestration of things behind the scenes. It's pretty damn rare he ever gets mixed up in h2h combat. In fact the only incident I can recall was against Ted Knight and his son Tommy. That however WAS after feeding on a descendant so his stats were amped. he did well but Tommy really wasn't much of a fighter so his amped stats vs Ted and his centuries of Skill should have had an easy win for him but it was a stalemate (IIRC).