Well first off WB games is a publisher, not a developer...
However, I find it very interesting that all of their games have a smiliar look and feel regardless of who the developer is ( dying light looks and feels like the arkham series looks and feels like SOM )...
So I think they probably play a pretty big role in the actual development of the game than most other publishers do...
Sony shouldn't even be on the list for best developer...no 1st party developer should...they spend the most time working on games exclusive to a system...which
If you factor in how good WB games look any every platform...AND they're games very rarely have any majors bugs...I'd say they are the best publishers out and are have the most talented game development teams...
Their PC games are so ridicolously optimized to perfection that the shyt is just

...Dying Light...in SLI...is using 90 % on both of my gpu's and about 35% of my cpu...shyt is just

how smoothly their games run on PC...
Matter fact...these dudes could make a ton of fukking money if they just opened up a division that didn't do anything that optimized PC games...
Matter fact...they don't need to that is a business plan I need to put in motion for myself