I have a 4 star and a Big Stik and I love them both. Both make very good aerobatic trainers and are easy to land. The Stik is a blast to fly and, as others have stated, will do pretty much anything when set up for it.
Building a Somethin' Extra kit is also a lot of fun. I am building one for my cousin and it is even easier to build than my 4 star or my Kadet LT 25 were. You can just keep going till you run out of glue
I have flown a twist and it floats in for landing just like the others but is also very responsive in the air. The only thing I don't like about the twist is that is doesn't seem to track very well when I want to practice larger, more precise aerobatics.