My app works even better in larger leagues. I use My Perfect Fantasy Draft to draft an awesome team from the 10th position in a 14-Team League.
The larger the league, the more important each pick becomes. Everyone's roster is thinner as a result so you need to make the right picks, especially early in the draft.
I loaded up on a rock solid starting roster but my bench is really good. I managed to pick up two of my favorite late round flyers, Justice Hill and Parris Campbell, in the 13th and 14th round. I consider both to have startable upside so the value there is tremendous!
You can access the app through my website: fantasyfootballmaverick.com