Here's also the "Parallels between Miranda and Tali" post in case you've missed it:
I found a lot of parallels between Miranda's father and Tali's father. They were both rather controlling of their daughters. In some way, I think that they felt like their daughter was a trophy or something to be presented to other people. Both fathers wanted their daughters a specific way. Tali was supposed to be the epitome of the Quarian people - a servant to the Fleet with the best engineering skills possible. Tali was put through the most rigorous military and engineering training in the Quarian Fleet. Considering he is an important Admiral, Rael probably thought his image warranted nothing less.
Miranda was supposed to be a "perfect woman."
It's not the same, but Miranda and Tali both reacted in similar ways to their upbringing. They ended up spending their lives in service to other people. In their romances, they are hesitant and worry about the effect the romance will have on the suicide mission. Because they keep thinking about other people or other motives besides their own happiness.
Both fathers never really show they cared. Rael did care, but he never indicated so until it was too late. They were never shown love by their fathers - Miranda's father because he cared more about his empire - and Rael because he cared more about politics.
Therefore, both women had to rely on others as "family." Cerberus became Miranda's family. The Fleet was Tali's family. When you have such a large amount of obligations as Cerberus or the Fleet would entail, that is going to affect you. That is a heavy burden on you. What resulted is that Miranda and Tali both had lives dedicated to other people. They almost never do things for themselves. It's always the projects, it's always the fleet, it's always the suicide mission. Their romances are really about them doing something for themselves for once, to treat themselves. To show them that they are not tools, but real people. That it is not selfish to want to be happy.
I even saw parallels in their loyalty missions. Miranda and Tali both had people who they thought they could trust. Miranda had Nikhet. Tali had the Fleet/Rael. In their loyalty missions, they first go through denial. They couldn't have done this. They couldn't have betrayed me. It would be counter to everything they had known. But no. They were both used for someone's elses' motives. Nikhet wanted the money that Miranda's father had to offer.
The Admiralty Board used Tali, someone who was supposed to be a well respected member of the Fleet, for their own political agendas.
So both Miranda and Tali were tossed under the bus by people who were supposed to be trustworthy - really - among the only people they thought they could trust.
At the end of their loyalty missions, they are willing to forsake their own happiness, again - for other people. Miranda is willing to never get the chance to speak to her sister, so that her sister is safe. Tali is willing to be exiled and her reputation destroyed so that the horrible nature of the experiments is never let out, so the safety of the Fleet and her father's image is not compromised.
I'm surprised many people do not pick up on these similarities. Miranda and Tali are similar in many regards. They are workaholics who have dedicated their lives to other people. They are both strong women who are geniuses among their races. And their fathers shaped who they are.
I will also add that the factions that Tali and Miranda are affiliated with are pretty much demonized by the galaxy. Cerberus is known as a terrorist organization. The Quarians are stigmatized as thieves, beggars, and scum. Yet they were tireless defenders of their affiliations - and both were strong enough to tell their faction to go to hell when they feel betrayed.
So I think more than anyone else, Tali is most like Miranda and vice versa.
Jack is hedonist to the extreme. She's always been doing things for herself. She pretty much reacted opposite to how Tali and Miranda reacted to how they were brought up - Jack lashed out, rebelled, and became an unruly societal deviant moving from one pleasure to the next. Jack really virtually only cares about herself unless you do her romance. Jack's romance is about Jack starting to care about other people. It's the opposite to Miranda and Tali (whose romances are more like starting to care about themselves).
Perhaps that is why Miranda and Jack are so much aligned against each other in game - they are like opposites of each other.
Thoughts? Opinions? Additions?