French language Q&A Forum

Would "Bon courage" be more appropriate here instead of "Bonne chance", because it's more like Good luck = encouragement, rather than Good luck = luck of the draw ? 

For the pronunciation of 'finissons' and 'finissez' (or 'choisissons' and 'choisissez'), does the double s sound more like a 's' or 'z'?

Whilst not directly on this subject but is anyone able to explain the use of "vaut" from the example. Il vaut mieux le faire soi même.