Compare board game options for a mixed group of new and experienced players

Someone always ends up either bored because the game is too simple or lost because it is too complicated, and picking blind off a shelf is a gamble. This compares three real games suited to a mixed group, covering teach time, game length, and how each group will feel about it, then gives one clear pick with an honest warning attached.

You are choosing a board game for a game night with a mixed group: some players who game regularly and some who barely play at all. Describe the group size and the general vibe wanted (competitive, cooperative, party style, or strategic) and get a comparison of three specific board games suited to that mix, covering how long each takes to teach a new player, how long a full game runs, how much the experienced players will still feel challenged, and how likely a new player is to feel lost or left behind. End with a single recommendation for this specific group and one honest warning about what could go wrong with it. Keep the whole answer under 350 words and name real, purchasable games rather than generic categories.

Group size and vibe wanted: [e.g. six people, mix of two board game regulars and four total beginners, want something fun not too serious]