In fantasy basketball, one of the most effective strategies in an auction draft is to secure a couple stars and then look for several good players at great values. Those players are the dark horses, and I have my favorite at each position.
In snake drafts, knowing the dark horses can help you prioritize which positions to target. Needless to say, it's important in any draft or league style.
I've used ESPN's rankings, both in overall and auction price, to do a Player X vs. Player Y comparison. One player is an unquestioned elite, while the other is a dark horse with very similar stats.
Enjoy and good luck!