I've read conflicting posts and seen no decent pictures comparing the two... Is the quality of D3200 much worse compared to that of D3300? I'm asking assuming someone who pays attention may have tried both cameras and may know... Something I have been unable to find info on.
According to DxOMark the D3200 and D3300 are very, very similar. The D3300 edges out the best performance, but it's such a tiny difference that it's safe to say lens choice and technique are the bigger differentiators.
There is only one major difference in the build of the D3200 and D3300. That is, the D3300 has no optical low pass filter. This should theoreticly result in better detail for fine patterns and the absence of the moire effect!
A picture comparison can be found here.
In the picture below, you can see that the theory suits practice pretty well. The pink cloth is much more detailed in the D3300 (left) than in the picture taken with D3200 (right).