So Sony games always seem to be the most reviewed games

[freebs2]

BraLoD said:

aLkaLiNE said:

And yet mass effect andromeda scored lower on PlayStation than Xbox despite a higher resolution and more consistent framerate. It's weird. 

That's up to the number of reviews.
Usually the version with the most reviews have the lowest score, because most of the criticism will be aimed there, while the other versions that have less reviews, lack the amount of lower scores to weight the same on them.
They are usually close to each other, though. Around 2 or 3 points of difference between themselves (for games without any particular disparity, as bad porting, for example).

If we assume a metascore is good measure to evaluate a game (a statement I do not agree with), a larger number of review doesn't mean a lower score.

If ever it means a more precise score, since the higher count of measuraments can outweight outliers more easily (like a 4/10 score when most reviews are between 8 and 9).