KravtZI think the shredditor is the most over rated ski on the market today.
Its so soft, has no feel, doesnt do any 1 thing particularly well. Just cannot see the hype behind it. Than again k2 hasn't made for the most part a good ski in years
Gotta jump in here to defend my Shreditor 112's. I have skied quite a few different skis but really like these ones. The tips and tails are pretty soft and I think this feels exaggerated by the steep rocker, but it does make them fun and easy to butter. Underfoot though they are stiff, and I feel very comfortable going fast on them. Mine are mounted at 4.5cm back from center so this might help. The other day I had them out on some fresh corduroy in like 34* weather and had a blast - each turn they carved tenches as tight as I could hold the turn. I've always loved the early taper/reverse sidecut concept that they have too, having grown up waterskiing more than snowskiing as a kid...I think just makes the skis turn so much nicer in fresh snow. My skinnier skis recently broke, so I have taken the Shreditors on a number of park laps too, and I have to say they have worked great for mellow rail and jump tricks. All of this being said, I think that the 102's would be a better all round ski.
OP, anything 95-110mm at the waist, give or take a few cm, that is pretty stiff and has camber underfoot, with early rise in the tips and tails, and is 185-195cm long or so (the early rise/rocker makes them ski shorter because the contact points are closer and theres less ski on the snow) will work well. Like I said above I really like early taper/reverse sidecut, but that's my preference and many skis that don't have this are great. If you're skiing park a fair amount, consider the thickness of the edges and the general reputation of the skis durability too.
The next ski I plan to buy is the Amplid Rockwell. This has everything I mentioned above, and was very fun to ski the time I demoed it years ago, you should check it out in the larger size. A number of my friends have older Armada TST's and JJ's, and all of them love those for all mountain skis as well. I think the Shreditor 102's, 112's, Line Opus, or Salomon Rocker 2 108's would be good options for you too, but really all the brands make something pretty close to what you're looking for, so I would find a few you're interested in and go from there based on specifics of the ski (turn radius, camber/rocker profile, flex, sidecut, sidewall type, edges, price, brands reputation for durability/warranty, graphics, etc.)