Thanks for these replies.

I also need a place near Ploenchit, hence my questions.
I am price and quality conscious, so hence my stay even at doubletree -> I can do a 100€ hotel if a 200€ ”luxury” hotel is not that good to justify 200-price.

I got Hilton Diamond and IHG Spire, Bonvoy Gold (when with a friend, he books me a room through his Ambassador and then it is usually a no-brainer)