RPGMemes

There's a good reason for the going for the last one: Opportunity Cost.

If you're in a situation and have an ability that can only be used once a day, you can never really know if this encounter will be the optimal use. So you hold off on it and thus get less utility. Even if you are regularly using it, having something you can always get utility out of is far more valuable than something that is strong but wasted sometimes.