Favorite castle type for castle spamming?

[Huzurdaddi]

So all of you castle spammers, what is your favorite castle type and why?

Do you like the midrange Fortress? 60 points, decent defence?

Perhaps the bargin basement watch tower? Low cost in gold, low point cost, and a 2 turn building time?

Or perhaps the luxary Wizard's tower? Good build time, low gold cost, some defence, decent admin, but a boat load of points.

Maybe it's the generic model, the Castle that is your fav. A little of everything, and a midrange price?

Perhaps you go for defence over all other things and go for the dark citadel/mountain citadel. Hard to storm, but they take a long time and a lot of gold to build. Cheap in points though.

So what's the concensus ( if I did not mention any it's just that I was getting tired ).