No need to revisit the old ones, that's what the HOF thread is for.
I think a yearly one is a good idea, could get some of the old farts on here that haven't built anything in a while to actually build again, could inspire creativity, etc.
Here is my criticism of your list though -
Standard size cabinet
Cocktail
Bartop
Mini
I think that most are standard sized cabinets, not that many cocktails get built, I would have maybe best standard size - CRT, best Standard sized - LCD and then non-standard sized cab.
Fightstick
I don't see a lot of fight stick builds, and this is more of a Shoryuken sort of thing.
Non Standard (think DrVenture's Arquadium)
I like this one, for things like the Doc Venture's and coffee table builds and the armoirecade. At one point, Knievels woody would have been here, and now its almost standard.
Hack or Mod
I find the hacks and mods the most entertaining and informative of all posts and the most interesting projects
Art
Lighting
Theme
I could do without these.Or maybe just have a theme category, as that incorporates the other two.
How-to thread
I could do without this, since there is a ton of stuff already out there and on the wiki. Anything that is new and cool and documented would likely fall into another category
Utility (code)
This would be cool
Automation
In my mind a part of the hack/mod category
Refurb
More of a KLOV thing in my opinion. Not that interested
Contribution to the Forum (kinda like a lifetime achievement type deal)
dig this
Wiring
Built
Best wiring - I am on the face about. What do you mean by built? I think there should be a "build thread of the year" award. Well documented build threads are great.
I think there should also be a Cab of the YEar.
I don't think we need that many categories though. THere really aren't that many builds, maybe 3 - 6 a month or so that get documented. With that many categories it would feel like handing out little league trophies.