Hello Love2Travel
I did this holiday at the end of February. All meals were buffet style and were 3 courses. You could always go back for a top up if you were still hungry. Wine was not included but you can purchase a bottle and what you do not use it will be kept in the hotel fridge for the next time. Hotel prices are very reasonable. Please note however that the hotel does not take cash over the bar. It is all charged to your room and you settle the bill on your final evening. My bill was just under 40 Euros but everybody is different.
The outside pool is not heated, but there is an indoor pool in the gym that is. The 2 optional excursions do not clash with the included ones and I would certainly recommend that you do both. However, you MUST book the Alhambra around 6 weeks before you go.
I know that you will have a great holiday.
Peter