No fair? Only one vote (mine) so far for Anguttara Nikaya?!
Some of you may not have had access to the whole translation yet!
When you do, you will see:Anguttara Nikaya rules!!
Just kidding, they are all good, but if I had to choose I would go with:
1. Anguttara Nikaya
2. Samyutta Nikaya
3. Majjhima Nikaya
4. Digha Nikaya
5. Khuddaka Nikaya
Since they are all good, perhaps another way to word it might be: "If you were stranded on a desert island, but could only have one Nikaya with you to read and study, which one would it be?"