I've heard from others that the Stairmaster is fun.
I would say the Artifact, or possibly even the Rome Graft. Which is basically a beefed up Artifact.
If you're pretty aggressive and rough with your equipment, you might want a step up from a "throw away" park board which are all what you have listed.
Although I will say the choices you've narrowed it down to would all be fun decks to jib around on, but if you want something that gives you a little "extra" you might want to step from those. For Capita it would be the Stairmaster Extreme.
I guess there would be more questions you would want to ask yourself before making your final decision...which do you ride more, jumps or rails, or equal time on both? how long are you thinking about having this board for? how long have you been riding and what areas do you want to progress your riding in?
And the only person who should "convince" you into buying the board that is right for you should be yourself. Get what you think would be right for you based on personal things you already know about yourself and your riding. With possibly using the opinion of others as a basis to go from, but don't let that be one of the largest deciding factors in your board decision!!!