Both are really fun! The common point is the learning curve and facility!

And with Artisan for Sketchup! http://artisan4sketchup.com/ ( 39 $ it works with the free version of Sketchup! )
You can profit of the ergonomy of Sketchup + the perversion of the Subdivision! :)
And if you want Boolean for free Sketchup: http://www.smustard.com/script/BoolTools 10 $ by the same author! ;)

So with Sketchup + Moi you have the best of two worlds for a minimum of efforts and headaches :)

From the manual of Artisan (French by me :D (No Moi here! ;)