i decide to replace my X-Z1 with a MFT but which one ? E-PL5 or GF-5 ???

Thank you al for your post to my precedent question,

Now i am sure to bzy a MTF and wanted to know if there is a big difference between IQ from the GF--5 and E-PL5 ?

And last quesiton which obj. fix gives the best result ?

Thank you all again.

Frédéric