Wha? No, both are the same.
Both have simple objectives. In Halo, you have to shoot other players by pressing a button, move with the sticks, etc. In golf, you have to hit the ball with the golf club so it can go into the hole.
Both are easy and quick to get. But, it is way to different to master. At Halo, you will be going from learning to run and aim quickly and accurate. At golf, you will be learning to hit accordingly and aim accurately.
Both are easy to play, difficult to master, like every other activity. Almost everyone can run, but not everyone got the skills and techniques to run just as fast as athletes at the Olympics.
I like to play Halo and golf, and I know how to play both, they are fun. But, I am so bad at both, hahaha.