Canon SX510HS is better as the SX520HS

I am a Hobbyknipser likes photographed his children, animals and landscape, the Canon SX510've SX520 and ordered parallel to test extensively to both and have decided on the SX510.
The price was not important because even the SX520 represents me in a good price / performance.
The 520 has 16Mp CMOS but has the same size, pixels are not enough. The below listed pros / cons apply only to the two cameras I have tested this only because I had a clear idea what I'm looking!

Benefits SX510:
Size, the camera is very comfortable to hold
-wlan
Processing
-Peis

Benefits SX520:
-16Mp
Recording speed in AF mode when the trigger is
-Zoom
-Scene Programs

Disadvantages SX510:
-no charge the battery on the camera possible

Disadvantages SX520:
-no charge the battery on the camera possible
Processing, The battery cover is very cheap not going on independently and is very sensitive and filigree. In the 510, it will automatically change to a spring, feels high grade.
Operating elements, the scroll wheel is very stiff
-Height Weight
-no wifi

especially the inferior workmanship and the size is the biggest shortcoming with respect to the Canon SX510 for me.
Sure, the 520 is not bad, it has more MP, larger zoom, more scene programs is slightly faster but that alone is not in relation to the 510, the significantly more (wireless, super processing, etc.) for a lower price has to offer.

Conclusion:
for normal use can I make the Canon SX510 only recommend !! Before I would opt for the SX520, I would have chosen an EOS.