I need to buy a new foundation but as i've never tried revlon photoready or revlon colour stay i have no idea which one to get?!

The reviews on the colour stay seem to say it has better coverage however...

the revlon photoready is meant to last for hours! So i'm completely unsure on what one to buy, they both cost the same, so please can someone help me on what to buy?!

I've got combination skin if thats any help? 

xxx