There are lots of them. The biggies:

Mobility (i.e., not being tied down to the property).

Either a) not tying up a lot of money on housing (assuming outright purchase or large down payment) or b) cheaper monthly payment than a mortgage (small down payment).

Outsourced maintenance (although there are good and bad landlords in this regard).

If there weren't advantages, renting wouldn't be as common as it is.