At first I thought I was leaving one guy behind to "hold the line" and at first that was gonna be Zaeed. Then I realized he wasn't very trustworthy and decided to leave Garrus behind because I remembered his ability to hold a chokepoint on Omega. Then I realized I didn't want Garrus to die before he could finish his calibrations so I planned to leave Grunt behind.
Once I saw that I was leaving everyone behind I just brought my normal Miranda and Mordin team with me to face the final boss without even thinking about who I was leaving behind, which was a apparently a pretty solid team.
Looking at the graph though, I'm confused as to why Jack is so useless at the door. Mordin, Tali, and Kasumi make sense, but isn't Jack an unstoppable killing machine? She would have been my 4th choice to stay behind after Garrus, Grunt, and Zaeed. She should switch places with Miranda.
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