Some of our favorite games right now are...
On the computer the favorite game site is Learning Games for Kids; there are some great first grade games on there for my daughter.
On the PS3 Mindcraft and Disney Universe my youngest son is very good with the problem solving that Disney Universe has.
Gold Fish in different styles is the game of choice at the kitchen table.
Tag is the game of choice outside.
What are your kids game of choice right now?