Considering the candidates, one stands out as the best choice .
1. Does the sentence contain a misplaced or dangling modifier ? Explain your reasoning
2. revise the sentence to correct the misplaced or dangling modifier
As it is written the modifier "considering the candidates" seems to be describing "one." However, one is not doing the considering; instead, "one" is a candidate.
A better revision might be "Considering the candidates, I feel one stands out as the best choice." In this way, the person doing the considering is made clear.