Dude, I find baseball boring, but it actually takes more mental skill to play baseball than soccer, which I played both in HS.
Try grounding a ball coming at you at a 100 mph and throw a pin perfect pass across your body. Like I said, try hitting a 90+ mph fast/curve ball. Try throwing a ball 90+ mph and let's see how accurate of a pitcher you are, if you can have a high % of those pitches landing in the strike zone.
Soccer requires much more stamina, but as far as skill, baseball acquire a lot more. Because in soccer, you can dictate how the ball interacts with your feet. Unless your a pitcher, you have to guess and react on almost every ball coming your way and its going much faster than a soccer ball is traveling.