Any of those are fine, and anywhere up Orchard Road isn't exactly slumming it.
Think I did the Oriental my first time > Park Royal @ Beach Rd 2nd time. Park Royal 3rd time. One of the hotels in Raffles City tower* the 4th time (with a bit of Fullerton slipped in), and the venue for the 5th induction is still TBA.... but anything other than the Mother-in-laws place will be fine by me...
Edit to add: * The Fairmont. I like it so much, that when we got married over at the Raffles back lawn, the Fairmont was where we spent our wedding night! And it was a blast, they went OTT, upgraded us, red rose petals all over the place, and also laid out in heart shapes here and there, towel sculptures etc. Phoo... amazing, certainly won't forget that in a while!