Need Advice. OMD EM5 or X-E1 as FIRST SERIOUS CAMERA to learn Photography?

Neither, look to a DSLR first.

You will have access to more accessories and lenses as a whole. The DSLR weight and physical size come second.  If MFT's never existed I would still be with Nikon no doubt.

Don't discount the Panasonic GH-3 with the other MFT cameras if you do go that direction.