My idea of a 'Who Dares Wins' only quiz was fairly similar to Pointless, basically each round would go from person to person asking e.g. teams to have won the FA Cup (but better rounds than that), name one and you get a point then we go to the next person. If you get it wrong, you're out of that round and can't gain any more points. Carry on until everyone's out or the entire list is completed, so in theory one person could rack up points on one round if they were the only person left.
Dunno if that appeals or sounds absolutely shit. I'd come up with what I thought were decent rounds.