I was once a good skier. Kids and time off the mountain I know I'm not the same as "I once was". I'm 185lbs., 5'9". I used to ski Bumps, Steep Mountain, and loved the jumps. Don't think I will be doing the jumps anymore, but hope to do steep and bumps where I can find them still. I'm 49 years old, but still in very good shape.
I used to ski Dynastar Religiously. 190 - 200 cm, Slalom Ski, Normally the 1st or 2nd lightest skis made. Old school skis, not the new technology.
You would probably love the Bonafide, but unfortunately it is just about sold out across the country and Blizzard ran out of them in October.
Have you skied a shaped and/or rockered ski before? If you have not, it will take a little getting used to but in the end you will be amazed by how much easier skis are to ride these days.
The Mantra is a great ski, but it is not very forgiving so I would not recommend it as your first ski after so many years, ditto for the Cochise.
The Theory is a great ski, especially because you are just getting back into the game.
Based on your previous love of Dynastar, I would encourage you to try out the Cham 97. It's a brand new ski this year and it rips.
As for length, you should stick with something in the 180's because rockered skis tend to ski shorter, and something in the 170's would probably feel pretty squirrely.
I strongly encourage you to go into your local ski shop and talk with the guys there, they will be able to point you in the right direction and will almost certainly have some demos for you to try. No matter what, please buy your ski at your local shop, the guys online aren't going to help you and you'll pay a lot more to have them mounted. Good luck
The Mantra has a pretty aggressive build with two sheets of titanal in it so it might be a little more than you're looking for in the stiffness category.
The Cham 97 from Dynastar is a little more forgiving. It has a rockered tip but a flat tail retains somewhat of a hard-charging feel. 184 would work well for a guy your size.
The Atomic Theory is a really playful all-mountain ski. Rockered tip and tail make it really easy to maneuver but you may find it a little soft if you're charging down the steeps.
Lastly, the Bonafide is a sick all mountain ski - rave reviews from all of our testers and those around the industry. If you can get your hands on a pair I think you'd be very pleased. As @brewski mentioned, it's sold out in a lot of places for that reason but if you're local shop doesn't have them, a little Google-ing can turn some up. I like to support local shops but sometimes you gotta do what ya gotta do! I'm sure your they'd be more than happy to sell you a pair of bindings for them.
I think the 187's are going to be pretty long for you in the Bonafide. I skied the Bonafide in a 180 and a 187 back to back a couple weeks ago and while I liked how hard the 187 charged, I felt that the 180 was more maneuverable and more fun all around. I am 6'1'' and 190 lbs, so I would definitely go with the 180 if I were you.
Great info from all of you. It's really helped me narrow down my selection. Since I probably won't find the Bonafide this year I will look to demo some. I will also check my local shop to see if they have any for demo's, I know they guys there well and can look to purchase slightly used ones towards the end of the season. I will always look to support my local shop as you guys mention. I like to keep my friends in jobs. Thanks for all the info. rduzac