Why would you want to rent an apartment when you have an open bench warrant? Most people who have those end up with free accommodations from the county. As for the landlord, if he runs a standard background check he may find the warrant. Companies who do these checks are constantly updating their open warrant list.
Taking care of the bench warrant is probably a good idea. If you put it on calendar with a court, there's a good chance the judge will set a court date and release you on your own recognizance (depends on some other factors like how long you were evading the court, the charges, etc.). Speak with an attorney first and see what your options are.
If you insist on staying a fugitive, keep in mind that larger complexes with professional management services are more likely to run effective background checks. Your best bet to find an apartment might be in a small, privately-owned unit. Even subletting could work.