Wherever you decide to move to will this be a permanent move or just while your kids go to school?  It may be difficult to sell your property if just going to be there for a few years.  

Like many have suggested,

It may be prudent to spend a little time at both locales and

get a feel for the place first hand.

Some issues like traffic, noise, the general vibe, etc, will quickly be apparent.

Good luck,

11 hours ago, adexbu said:

Go to Huahin if you are ready to die, go to Pattaya if you still want some fun in your life

You beat me to it....

Pattaya is where people go to live when they have done working.

Hua Hin is where they go after they have done living. 

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