This paper offers a critical analysis of the current debate in vice theory. Its main aim is to provide the reader with the conceptual and methodological tools to navigate the discussion among reliabilist, responsibilist, and obstructivist approaches to moral and epistemic vices. After a brief exploration of the reasons underlying the recent flourishing of vice theories (§2), the responsibilist account is introduced (§3) and several critical remarks are offered to ensure that this view can accommodate the cases of malevolent and (...) indifferent individuals (§4). The two following sections are devoted to a critical discussion of vice-reliabilism (§5) and Quassim Cassam’s obstructivism (§6). The conclusive section (§7) provides reasons to favor vice-responsibilism over vice-reliabilism and Heather Battaly’s pluralist approach, and sheds light on the innovative features of an obstructivist reading. (shrink)