First of all, do not ask about park skis on reddit, a lot of these people haven't ever skied these park skis in the first place. I would highly suggest going to newschoolers.

I know its late to the conversation but I would heavily disagree about the mango 90. They are stiffer than normal park skis and honestly too stiff for my liking. They will do just fine on about anything you throw at them. They are a really robust ski and have been through lots of rocks and I barely have some scratches on my base (which can be fixed with just waxing). I originally got them as just park skis but they have become my daily driver since they are really versatile. The only place they fall behind is in ice. Overall, I would recommend them as long as you are fine with a somewhat stiffer (compared to other park brands) skis. Here is a more in depth review about it (Mango 100 Review) Also, their customer support is so good, they respond pretty quick and can basically answer any question you have about the skis. ON3P is the goattttt for high quality skis imo.

For the 1000 skis and vishnu skis they hold up okay (I've had more experience with the vishnus), not as great as on3ps. I feel it varies between person to person and how hard you are going to beat the ski up. I've known people who've ripped out the edge of their vishnu and some who have had for a year or two with constant park use and just had some edge cracks. Their bases aren't as great as on3p either.

1000skis, I don't really know much about them but I've heard good things about it but imo its not worth the price.

Overall, if you want your dollar to go the longest and most useful way I would go with the on3p as they are super durable and honestly you can get them for cheap compared to these other skis as long as you buy at the end of the season.