Try downloading one of the example assets and add the glass material to it, see what happens. It should be working. http://quixel.se/usermanual/quixelsuite/doku.php
Not strictly necessarily. You're more easily vert-bound on ps3, for example. That shouldn't affect topology per-se, but starts to be an issue with overall counts.
That's the thing...it's going to be different depending on which studios you've been on contact with, how long you've been knocking around and on where you're located. Maya's adoption in the UK for example is influenced by the relative strength/size of our VFX industry and some aggressive educational pricing strategies at…