Don't get too caught up in your GPA -- focus on doing well on the GMAT, and that will help balance out your GPA. In any case, you can't control anything about what has already happened (GPA) and you don't want to spend most of your efforts playing defense on your applications. Focus on your strengths, and let the weaknesses be as they may -- it's not about being perfect, but about being compelling (and perfect = boring).
Also, I wouldn't mention anything about your depression. Unfortunately, there's still a lot of ignorance when it comes to mental illness, and you risk having some folks who can't help but feel concerned about whether you'll be able to cope with the MBA program because of any past history (again, due to ignorance about mental illness). Again, your GPA is what it is, and there's not a whole lot you can say other than the standard 'I could've done better had I been more focused' narrative which is worth about 2-4 sentences in an optional essay.
As for your school choices, you're certainly in range assuming a strong GMAT. But given that it's Round 3, it'll still be a bit of a gamble. In any case, what you may want to do is to apply anyhow (roll the dice), and if you get in, great. If you don't, you can always reapply next year.
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