Bangkok hotel 邊間好?

Both of the hotels are quite similar. I've never stayed in Citichic Boutique Suites but I can tell you some information about Le Fenix

Le Fenix is nearby Nana BTS station, with around 8 minutes walk. you get all you need within the hotel, but not as luxury as other 5 star hotel. for example you'll get a rooftop swimming pool but a very small one.

But I like the location since it is away from the main street which is not that noisy.

So if you are not looking for a luxury hotel, Le Fenix is a good choice.