This thread was made for me, I've owned both. So here's what I got
Domain: incredibly fun ski, if you spend the large majority of your time skiing rails, this is your ski. The flat rocker makes butters, swaps and shuffles just so effortless and good looking. The problem is that carving is super boring since the ski doesn't really bounce back due to the lack of camber, this ski also doesn't do to good a job of dampening jumps. I loved just popping huge nollies to disasters on easy rails with this ski, it may not be the best for pushing yourself to the limits but it's fun.
4frnt switchblade: Toughest skis I've had. First day I look them out I went to try a few tricks on a few new rails at my local park, after a long day with a ton of slams and catches I was really happy to see the skis were in perfect condition. Honestly the only major complaint I have with this ski's that they don't come in longer lengths which makes it harder for me to land switch given my height, but this is a small complaint. At first I was really hesitant towards these skis coming of the domain but I love them now. The flex is firm enough but you can still flex with a good amount of force, it has camber so it holds and edge better, and... well thats it really, just a good all around traditional park ski.
it ain't Saturday, but it don't matter to me... GOT NO JOB!