The Right International School? (Riyadh)

Hi Guys, can anyone give me a sense of the right school for my 7 yr old son. Currently (while living in Muscat) he is enrolled in Intrenational School of Choeifat which do the I.B - but I was always unhappy with it because it was extremely regimented and focused only on academic with a exam every 2 weeks in Class 1!!!!

I want to lean more toward schools that use experiential learning and focus on the arts as well apart from just academics.

From my research it seems there are only 3 major choices:

- American School
- British School
- Multinational School

Any experience in dealing with these as parents?