(*) For the same quality/method (BF+LC -> PT+HD) yes.
(*) If you want, you can use VRay with low setting with IM+LC and bad AA, but it's another story.
(*) Also, you have to think how easy is Corona. No AA, no DMC, no subdivs, no splotches, no f**k problem with sub-pixel mapping etc...
(*) VRay, support more stuff, like PF, AB, FumeFX, RT in DR, RT in GPU, volumefog, SSS, better displacement, etc... a lot of useful map and material