based on my trip can vouch for raffles palm (not near dubai mall, its on the palm), raffles downtown (didnt stay here personally but my stay at raffles palm was outstanding), sofitel obelisk (only with the club membership)
Been to Singapore last October. My personal choice is Dubai as there is more to do in Dubai for longer duration. However, I stayed 9 days in both Dubai and Singapore.
Things like Miracle Garden and Global Village do start opening from October but you should check their website for exact date this year.
Most other places which are airconditioned are open throughout the year.
Dubai is relatively hotter in October for day time outdoor touring.
Weather starts improving from Nov onwards till April - specifically for day time outdoor walking etc. In-doors is usually not a problem anytime of the year
October however is good season for waterparks there
Mr Arora, If you are from Delhi - than October in Dubai is not an Big issue, weather wise...
For things you are interested to see, you have to check ✅ Official Govt of Dubai site-
Explore Dubai’s top tourist attractions, including famous landmarks, adventure parks, museums and more. Plan unforgettable experiences for all ages and interests.