When I started racing a BubbleCross type course was the norm.
So when the old-timers like us used to race, it was like this (according to cross results) in 2011:
Hillbilly Hustle - possibly the course with the most character ever - now dead
Westwood day 1 - still today a solid course - venue is gone as of this year
Westwood day 2 - series is 3-for-3 now - venue is gone as of this year
Hidden Valley - original Bubble cross venue. Solid, not amazing but solid. - venue moved
Greystone - this was the first year that Marty's got into it. Course was ok at best - venue moved
Sussex 1 - this one is your standard dirt crit mostly
Sussex 2 - dirt crit day 2
Horseshoe #1 - one of the best venues in NJ - now dead
Horseshoe #2 - hells yes - now dead
I think there may have been some deep south NJ races that are now defunct. I never did those.
So of the 9 races listed above, I would say that 5 course were awesome and a 6th was good. So 2/3 of the series was run on courses that were fun/interesting/challenging.
Of those 9 races only 1 (a single Sussex day) remains.