There is no point in just coming to Granada for just one day. Go to one of the two places for 2 days. Also, there are many websites offering excellent information about Granada and Malaga. I could waste my time writing an answer to your question but you would be much better reading one of the many free online guides and pages about Malaga and Granada. read more
I plan to be in Sevilla for at least 4 nights. read more
A week to ten days in Andalusia (spending the majority of your time in Seville and Granada, with short stops in Cordoba, Ronda, Jerez, and Cadiz. A week in Madrid, with day trips to Toledo, Segovia, and other destinations nearby. read more