I like Eastvale...each renter has their own wants/needs/desires. It will depend on each person's preference and where they work and what they need for their family. Location close to freeways, schools, shopping and renovated or updated is always good.
Corona in general is in high demand for rentals, due to affordability and location. Average going rental price is a dollar per square foot. Be sure to have new fresh carpet and paint prior to showing and move in. Working and newer appliances also pay important rolls in the homemakers requests. And most importantly, be available as a landlord for your tenant to contact you whenever a concern or issue arises at the property.
It depends on what kind of renters you will cater to. Generically speaking though, low rents is high on the list for renters feeling the financial pinch of our slow economy. That means keeping your costs low so you can pass on any savings but still make a net profit.