Due to the unrest in Bangkok the wedding location was changed to the Shangri-La which resulted in me cancelling my booking at the Four Seasons and moving across the river to the Peninsula for 3 nights and the Shangri-La for two nights.

The two nights at the Shangri-La were a terrible mistake.
- Breakfast was bad (stale fried rice etc)
- Problems with rooms (key cards deactivating in middle of the night, ants in rooms)
- Blaming wedding group for damage to elevator without producing any proof despite being a massive hotel with hundreds or thousands of other guests at the time
- The Club sandwich in the lobby restaurant was quite good however

Now the Peninsula on the other hand... just wow! It is rare for me to like a city hotel so much that I actually don't want to go and explore in the city but the Pen accomplished this. I booked two balcony rooms through Ian (Luxury) who is a PenClub travel agent.
-VIP airport arrivals service with buggy was arranged through the hotel and the best arrival service I've ever experienced. I am not sure if this is a Thailand thing or a Peninsula thing but I was very impressed at how quickly and seamlessly they escorted us through all the immigration formalities to our waiting car.
-Check-in was handled in room and two check-in agents as well as bellmen were waiting outside the hotel for us to arrive. PenClub benefits were clearly explained and documented in room.
-My father raved about his massages
-The warmness of the staff was really impressive. They really, truly seemed to care and want you to feel at home.
-Room service dinner delivered in 15 minutes which was the time quoted over the phone
-Quality of the food was very, very good.

If I had to nitpick two things about the Peninsula 1) Free breakfast not available via in-room dining (unless booking a suite) 2) The in-room technology seemed like it was state of the art 15 years ago.

The quality and location of the Peninsula make it an incredible value proposition but this hotel is more than a good value, its truly an exceptional hotel and I eagerly look forward to a chance to return.