Went on that helicopter ride a few times. At 0:07 when you hit the bottom, it jolted your whole body. It bloody hurt. I LOVED WW. Lived across the road from it so we went heaps of times, but I gotta be honest, the whole place was a deathtrap.
I never got to go to Wobbie's World, so I wouldn't know if it was as bad as what some people have commented. I thought that it originally closed down because it had been put on the site of the proposed Healesville Freeway. That particular section of the proposed freeway site was scrapped. There ended up being a housing development and a police station put on the abandoned site of Wobbie's World a few years after the place had shut down. For the record, the Healesville Freeway is one of the only remaining long time proposed freeways in Melbourne that to this day has never gotten built.
I loved this place too. Apparently the castle entrance, the bridge, the mini golf and the party room is still there. They built a housing development around it
Leisureland was most assuredly NOT better, at least when I was a kid... my family demanded and got a refund from Leisureland (no shit) for having nothing and sucking (admittedly, it hadn't long opened). Wobbie's World was pretty naff by today's standard, but I have many fond memories of many visits there growing up.
The amount of time that the two places lasted for probably says a lot about which theme park was either better or more successful than the other. To my recollection Leisureland lasted for less than 10 years. It shut down in 1992. Wobbie's World opened in 1970, and despite all of its knockers it managed to remain open for 29 years, finally closing in 1999.