yes, quality of life matters and this is something what you can find everywhere in the world, just everyone is into different things. I really admire the quality of life here in Singapore and this is why:
1. My kids can use public bus to commute. Not a complicated journey, but few bus stops. This gives them the great feeling of being independent.
2. I am fine with having my teenage daughter going by herself by taxi. I would NEVER do this in Dubai.
3. My kids can see older people here - they can have their own life too. In Dubai you hardly see people older than 70 years old
4. My kids can walk to the shop for the ice cream. Here are proper side walks

5. I am fine with my younger child going by himself to the bathroom in the shopping center (we don't go to the big shopping malls)
6. Our weekends are not limited to beach, movie, bowling or other attractions in the shopping mall. I have noticed we spend better family time here; our bicycles have not been used in Dubai and for the rollerblading we could only go to the beach by the Jumeirah Mosque, still for the limited time only.
7. There is existence of multiple museums, exhibitions and concert.
7. I don't need more than 10 minutes to buy a bottle of wine.
8. As a family we only drive not more than 800 km per month total, so the time we spend in the car is dramatically reduced.
9. Looks like we will have a greater chances to travel in the region, I think this part of the world offers few more sightseeing.
10. Greenery and the rain - oh, yes, I am sure you miss it too

This are the good points only, I just made this summary to point out why a family might consider Singapore a better place to live than Dubai.
Cheers