Most Mozart sonatas, unfortunately, are often looked down upon as children's music by judges (at least in my experience).
That said, if you can play it WELL, by all means.
I'd also look at K332, in F major, which is a bit more musically involved and taken a little more seriously (not to say that the K330 isn't a great sonata; it is! However, judges tend to value Beethoven and Haydn more in my experience).