soccer as a sport to watch, soccer is still very good though. From watching soccer to watching football it's an upgraded experience. I think if you don't have a soccer team to root for, the only way to become a fan of both soccer and football is learn to watch and enjoy soccer first and watch football later, i.e. saving the best for the last. That's my journey. It's hard to go the other way around since it would be a downgraded experience.
Rationally I know football game is better to watch, but emotional attachment to soccer is already there. It can't be disappeared. That's the reason I can enjoy both soccer and football.