Ive ridden both
Both are super solid skis, you cannot go wrong with either. Magnuses are super rockered but definitely stiffer, which means you’re gonna get a lot of pop out of your ollies/nollies/butters etc. they’re also probably the most durable ski on the market if you take care of your edge cracks the proper way, but that being said I have seen a lot of pairs snap from jump crashes. Magnuses are also pretty heavy IMO but nothing that will really affect your skiing
vishnu wet on the other hand is IMHO the most fun ski ever created. Super soft (perhaps the softest ski on the market), but at the same time they’re snappy and still poppy. Stupidly easy to butter. super light as well, amazing on rails. Theyre swervy and surfy as hell because of the insane amount of rocker (a little more rockered than magnuses). One of the best parts about them is that they’re symmetrical in design and flex, which IMO is a game changer for park skis. They’re not as durable as the magnus, especially if you’re a rail rat who likes big disasters as well (that’s me) but they will serve you well if you take care of any edge cracks you get (which will happen to any ski). People bitch about vishnus on jumps but honestly I’ve never had a problem, if you land backseat on them you just wheelie it out.
plus, Vishnu has the dankest topsheets in the game.
if I were you I’d go with Vishnu, because they’re significantly more fun, and better priced/valued (vishnus are 420, magnuses are 600).