system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why Is The NFL Draft So Popular Compared To The NBA/MLB/NHL Drafts?
gpt
There are a number of reasons.  

* It's the most popular professional league in the US by a longshot.
* It has a sweet spot for the number of rounds--7. Hockey has this as well but it's less popular than the other three in the US.  The NBA has two and the MLB has *forty*
*  There is a lot of uncertainty.  Given the number of positions in football, teams will have a lot of needs or weaknesses to address. It's interesting to see how they prioritize these needs.  Further, it's tough to predict much outside of the top 5 picks.
* The NFL does an excellent job of promoting and building excitement around the draft.
* It involves college football, the most popular college sport in the US.  Many of the players in the draft are already well known to even a casual sports fan.