Agree with Houta: Dxb is a good place to shop and for casual visit. but to live there!! its a hell coz of only 1 thing-Traffic! but its a real problem when you live there. Rent wise both are almost same, but for people in Dubai there are options like Sharjah or other northern emirates if they want to spend less on rent but ready to take more traffic! but here every were is the same even if you go to AlKhor its the same rent as of Doha. All general items expect petrol is cheap in dxb compared to Doha.