Six.

At six Aidan loves:

1.  Grilled cheese.
2.  Mariocart and Kirby.
3.  Pokemon cards.
4.  His new friends at school - Oliver and Jack.
5.  Playing basketball and swimming!
6.  Reading books.

7.  Snuggling with mom.
8.  Playing with dad.
9.  Legos.
10.  Playing with Lucas.

He doesn't like:
1.  Salad!
2.  Mean kids. 
3.  Playing with Lucas.

He says overall "he just feels a little bigger now that he is six"....