LeagueSync has been built to work with forecasting models that have been PROVEN on thousands of NFL games going back to the early 1990's.
Be careful you don't fall into a trap: "the more input options a tool gives you, the more it will help you win!"
Other prediction tools may offer input options for the rarest of NFL events and give you a slick interface for all kinds of items.
But the truth is, any Preseason Drafting tool that factors in 2pt conversions, 300-yard passing games, defenses pitching a shutout, run the risk of being "precise" --- "precisely wrong."
They look good on the surface, but that's not what counts. These tools are playing to a rather gullible audience. Be careful.
No NFL analyst worth his salt believes a proven method to model and predict all of the rare NFL events at such a level that it will actually impact player values for a season really exists.
A tool that can accurately predict how many games a Team Defense will give up 0-points, 2-5 points, 6-10 points and so on over an entire season (before the season starts) just doesn't exist!