Post getting dated but good discussion.only two schools in the GPS and CAS competitions DON'T have a cricket pitch in the middle of their no 1 rugby fields: Joeys and Knox.
Be interested to hear what the best Qld grounds are, not having much knowledge up there.
Agree Knox is by far the best ground in Sydney after putting seating into the bank, and moving the main cricket ground to North Turramurra, and no surprise it often hosts NSW comps with lighting and good camera positioning.
Joey's is a great ground but the lack of natural elevation and smallish grandstand hurts it, even with the temporary stands.
I actually also like Cranbrook, Barker and Oakhill which both have small grandstands and other elevated positions, but none could cope with larger crowds. Waverley somewhat similar but as a (afaik) rented ground it probably can't make any changes and the pitch is rather rough.
Riverview is an outlier for me.. it has hosted some NSW and Aus comps, but is just horrid in weather. With $s spent on drainage, grandstands and terracing over most of the bank it could be so much better.