What I hate about the Mass Effect morality system is the Renegade is not only badass, but also encompasses being a dick for no reason (like not helping a dying person for no benefit), and Paragon is not only honourable/acceptable, but also encompasses being naive and doing good things to people who don't deserve it. However, if you want to go well in the game and make sure no-one DIES, you have to be one or the other, completely, and that annoys me because you can't be any number of reasonable personalities, like law-enforcing good but with no tolerance for enemies, a badass utilitarian who just wants to get the job done, or even just a Paragon character who sees the Krogan Genophage as a necessary measure. But no, you're either a complete dick or a wide-eyed idealist. So I chose the third option.
And to answer your question properly, in my playthrough where I don't give a f*** (which is important to have), I ended up about equal. I also have 5 others, two of which are full Paragon and full Renegade, the rest being a little slanted towards either (and who have a hard time solving anything because they're not bipolar).