Thank you all for your suggesitons... The issue for me is that these 4 days are reserved specifically for relaxation, I will be doing a very busy tour of Myanmar, including trecking, hiking, etc.

I am trying to avoid the 3 hour drive each way to Hua Hin, and given the early flight out of BKK, if I stayed the entire time in Hua Hin, I would have to leave at around 3am... which is not ideal.

I would like to spend some quality time in ONE place, just can't decide which one . Thanks again.