My choice hugely depends on choice for what...
There would have been times I would choose my love for sure, other times I would have bet way more on friendship, and at others, actually on none of the two.
But if you're asking a general choice in life, I think you're yourself confused, or at least you're not trying to make your situation clear enough to assess it... 😆 I would also love my friend so there wouldn't actually be a question of choosing between him/her and my spouse/boyfriend/girlfriend.
And I see you're talking of your heart. Well my heart is, humbly enough, huge enough to keep my special one as well as my friend in there. So I don't really think I'd have any anxiety over that aspect at least. And personally I have never believed persons should "occupy" different places in your heart. Because the people that I've loved and are special to me are a part of me, that comprises body, mind, heart and soul so I never felt the need to differentiate how much or where I should keep them. As long as they are a part of me, am fine with it.
I think you should specify what you're talking about. It's not only hugely vague, but highly confusing as well!