I know this is always one of the hot topics in the Photography world, But I would acquire more info from everyone before making the purchase.
Actually I am looking for a justifiable reason to buy the Macbook pro 15 over the 13. My budget suits the 13 basic model though, but after many readings through on the internet, the 15 model seems to be the winner over the 13. So if the 15 inch is really that good, I will save up more for the 15 instead.
I will do light photo edits (below 50 pics) normally and edits up to 4000 pics after a trip (only once a year). and I will be bring it with me for travelling.
I am open to other brands of notebooks, yet macbook seem to be more worth the spend.