Thank you, guys, for your replies. Seems that all of you suggest the Sony, so I'll go for it, really appreciate your help.
So, in terms of stills quality, Sony is better...!? (for a non professional shooter like me, the difference between a landscape taken with the A6000 and one with the 70D, in same conditions, will be visible?)
At this point, one thing that's pretty "annoying" is that there aren't so many lenses for the E mount and internet shopping isn't as vast as that of Canon... (and if you want quality glass on Sony you have to pay a lot, as "used market" is almost nonexistant).