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Chimay Blue which you probably tried is a brown & sweet beer. Orval has a lighter colour and has a more complex taste with bitterness and some sweet tones.

I choose Orval over Chimay Blue any time, although I like both. Would certainly recommend you to try it. I don't agree with the 11/20 here. But the rating is subjective of course.

I actually wrote about Orval as well last week in my Beautiful Beer Labels series: https://steemit.com/beer/@davenumero6/beautiful-beer-labels-1-orval

Great, I will do some digging to see if I can find Orval anywhere around me.

They are really different, the Chimay Blue is very well balanced I'd say while the Orval has its special taste and quite a lot of bitterness.
I really encourage you to try a lot of different beer you'll be surprised by all the different tastes you can find ! :D

I will do my best! :-) Thanks for the advice.