Hi. More details would have been useful as regards brands and prices. Obviously not all laptop brands deliver the same quality.
If price is not an issue with you, go for the Core 2 Duo. I think it will give better performance. Its however likely to be more expensive.
You can see an earlier nairaland thread for more details.
http://www.nairaland.com/nigeria/topic-118121.0.htmlOne big pro for the core 2 duo is that its supposed to be more energy efficient. The biggest advantage the turion has is price. Its usually much cheaper. Its also more than sufficient for most people's needs.