I like my MSP CAI personally. Here is a really old picture of it install in my car non-iced...
Originally installed 6 years ago...
Another picture a few years later, only changes is the ram air inlet for my aftermarket hood...
And here it is today... I've upgraded to 4" ducting, added even more insulation, still works good...
These can be had cheap used nowadays and takes minimal work to upgrade it. IMO a few small tweaks and it'll perform with anything out there.
I'll have to say though, the Cold Air Inductions unit looks damn nice, for looks i'd get that over the Wizaired. Honestly the box design is damn near similiar to a Wiz or Thrasher, only thing the Wiz MIGHT have over the CAI unit is more insolation and a bigger duct, but again that can be upgraded for a minimal amount of cash and after that I don't see the Wiz being better. Heads up, I don't see the Wiz performing much better anyway.
I'm still partial to the MSP design with the lid over the rad support to catch air from the hood gap, but thats my opinion too.
My best advice, do lots of research, get what you like the best... Good Luck...