MEng is a professional degree that usually lasts for a year and Cornell won't usually let you transfer credits since the program is only for a year. It might help to keep up good grades from RIT if you want to transfer to Cornell for MEng program. You have to think about what you want to do after masters. If you want to pursue Phd, it's better to have MS rather than MEng, but if you plan to go to industry after masters, MEng might not be a bad choice.
Hope it helps