How good does four years of a foreign language look compared to three?

<p>I am currently thinking about whether or not I should take French IV AP next year at my school. I'm good at French, but French IV is challenging at my school and not something I would like to take as opposed to AP Biology, which I would take instead of Spanish. However, I think I should take French IV because it 4 years of a foreign language looks good on college applications, and I've already taken both Physics C and AP Chemistry. So should I take French IV, or is three years enough to look good on college applications?</p>