Moxie. Poise under pressure. It.
Whatever you wanna call it, I wanna measure it, and to do it, I'm going to use Baseball Reference.com's so-called "Clutch Stats."
This set of statistics measures how well each player performs in pressure situations, such as runners in scoring position, performance in late, close games, tie games, games within one or two runs, and performance while ahead/behind.
These sets of stats tell the story, and it's one that favors Markakis. The later the game, and the more pressure-packed the situation, the better Markakis seems to get.
While ahead in games, Nick is a .277 hitter. While his team is behind, however, his average jumps to .295.
When a game is within three runs, Markakis is a .302 hitter. Within two runs, he jumps to .308, and when the game is within one run either way, Markakis holds a .314 average. Even better, when the game is tied, he hits over .320.
In case you were wondering about Jones' performance in each of these categories, his average is well below .300 and in most cases below .280.
With runners in scoring position and two outs, he can only muster a .228 average. In late games that are considered close, his average jumps, but only to a mere .236, and he has a 6:45 walk to strikeout ratio in that period.
This one goes to Markakis.