Here is what the good ride said about the Anagram:
Beginner to Intermediate Freestyle to All Mountain
Continuous Rocker Twin Shape
The K2 Anagram is a good beginner Twin shaped snowboard despite the fact it has an extruded base. An extruded base is less expensive and more sturdy but a bit slower than the very common sintered base you see on most snowboards. Another issue with extruded bases is they are a bit more difficult to repair. For 2011 the Anagram now has a very smooth rocker that makes for a catch free ride. It doesn't have the pop or carving ability that the 2010 had but it performs better in powder and is a little more jib friendly. The Anagram has built in more tech than your average snowboard for this price. So you lose a little speed, which is ok if you are a beginner/intermediate rider, but you get a board that has a good all around performance. This is perfect for those that want to learn a bit of everything in the park and mountain.
Here is what the good ride said about the Raygun:
Intermediate to Expert All Mountain Freestyle
Continuous All Mountain Rocker Twin
The K2 Raygun is a good all mountain to freestyle rocker snowboard. It has stability when flat basing and hitting more than a crusing speed. It's not the best when it comes to carving but the Raygun will be great for jibbing all over the mountain. For the price its hard to get a good all mountian freestyle snowboard at this level.
The k2 Raygun also won a good wood award this year from Transworld Snowboarding and this is what they said:
A brand-new board in the K2 line, the Raygun performs as well in the park as it does in the sidecountry. Generous rocker in the tips yields maximum float in pow and easy presses in the park, while its setback stance keeps you firmly in the driver’s seat. With carbon fibers woven throughout the topsheet, this gun is steady and easy to aim.
“Really good carving board. It has a great shape and flex for ripping turns and jumps.”
Honestly, its hard to say without having ridden the boards which you will like better but the testers seemed to really like the Raygun both at the good ride and at Transworld. The Raygun will most likely be better when you hit the big mountain and will probably be more stable at high speeds or when flat basing.
As far as the park at your local resort I personally think the Anagram would be totally fine and the centered stance should make it a little easier to ride switch (although none of the testers had any problems riding switch on the raygun-but they are advanced to expert park riders). If you are first learning to ride switch the anagram probably would be better. Also learning to ride switch is kind of like learning to ride again for some (it was for me) and having a board intended for beginners with a catch-free rocker will most likely make it easier.