Daily Fantasy Sports players tend to follow the money. The sites with the largest number of players, and the largest amount of money, are DraftKings and FanDuel.

Both sites offer NFL DFS contests. The sizes of the contests are variable and depend upon a number of factors, such as the buy-in, the number of players, and the popularity of the event. Sometimes the sites will sweeten prize pools, which is a win for everybody.

You can play in large or small contests, but in general it's easier to make money in smaller contests that involve less money. This is because the skill and quality of players is lower in smaller contests.

In general, our preference is DraftKings because their technology is heads and tails above the competition. This doesn't necessarily impact your ROI and whether you win or lose, but a higher level of interactivity and more feedback from the DraftKings app simply makes for funner games. We also find it easier to import and export data and lineups from DK, but your mileage may vary.

Other sites also offer daily fantasy contests, and if you can get over the inferior technology and smaller prize pools, you may find softer competition. Stay tuned, because we're going to review each site in depth.