Hi , as shared by Rhino and some of the brothers here.
The EPM2 uses the same sensor as the EPL5 , making it more than decent as a camera. The main difference is just that as EPM2 is marketed as a camera for PnS shooters, some people might have misunderstood the lack of dials , buttons to mean its a not so good camera.
Mounting a good MFT glass such as even the old Pana 20/1.7 or new Oly 25/1.8 or even the new O12-40/2.8 (will be very front heavy!) will definitely already give u better IQ than the kit lenses of the 2 Canon and Nikon models u r considering. I've actually given away a 550D kit because I already had my EM5 , 12-35/2.8 kit then.
Hence maybe can I ask what is it u find lacking in the current EPM that makes u wana upgrade ? Because u wan 2 venture into taking more controls or because that the DSLR look seems more 'serious' or ?
Don't worry about being flamed , it's always good to be honest about your needs so the kind people here can help u better.