My strengths as a designer huh, I pretty much loathe questions like this, such a stereotypical interview question. Actually I don't think I have ever been asked a question like that in an interview, maybe once with Red Group or something but thats it. Thats probably designs biggest strength, not asking lame interview questions that don't really say anything. "My greatest weakness is that I care to much, OMG I totes killed it". Eff that noise!
Anyway I think my strengths as a designer are more of the intangible sort, which is turning out to be a tough sell. I don't really know exactly what this means but I think that I have a strong ability to resolve conflicts between a given brief and my personal aesthetic. I'm a big believer in the idea that every design problem has a solution that satisfies the brief as well as the designer personally no matter how divergent they first seem.
As far as my current career goals go I think that having my fingers to the pulse of the American youth zeitgeist is a great strength, again a tough sell. You can't really say something like that in an interview, well maybe you could, but I don't think I could do it without laughing. But in all seriousness I have always been sort of a big picture thinker (uhhg word vomit) and I think that really helps me digest all the design/fashion stuff I peruse on a daily basis into something that I can use to inform my designs without blatantly ripping people off. I'm bout to be on some next level shit.