Is it better to rent a car daily or just get a monthly deal if I’m staying in Abu Dhabi for 5 weeks? I need something reliable for commuting.

Definitely go for a monthly deal, it’s significantly cheaper! I recommend looking at https://drive.yango.com/monthly-rentals as they have specific packages for long-term stays in the Emirates. You get a much better rate per day and don’t have to worry about renewing the contract every week. The fleet is quite modern, and since they are localized for the UAE, their roadside assistance is very dependable for daily commuting.