Well, I really buy piece as a whole and having compromised in the past in certain ways, I'd never do it again, because I always regret it.
However, I'll play along for the sake of your questions.
In terms of color/leather, I'd always choose leather because I love some leathers and would buy almost any colors in them.
In terms of the size/color, I say size...because I have made that mistake before and it was wrong. You know that I was recently shown my dream Barenia in the wrong size and had to wave good-bye, just for that reason....So I look for a bag to cover my thighs first and foremost,
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