This is Interesting because everyone has their own needs. About revit, at first i was atracted by it's parametric promise, but then i could never get used to the possibility that the software moves things on its own, the infinite amount of warnings or that the model can become unmanageable with too many constrains (without mentioning it's overall clunkiness). Call me old school, but I would rather move things manually but know for sure they would stay there.
In revit one small checkbox inside three submenus can mess everything.
I must say i never became an advanced revit user; maybe with a little bit more practice i could have overcome this things, but man did i find it unfriendly. On the other hand, temporary dimensions are absolutely great.
Meanwhile, something strange happenned to me with archicad: it cost me a little bit at the beggining, but after some time i began finding everything i needed without even knowing where it was, like it was magically laid out for me. Also at first i was also annoyed at the aparent small lag with selection until i began to realize i was modeling maybe five times faster or more than i could when modeling in Autocad3d or revit.
But other people might have the oposite opinion depending on the type and scale of projects they do and the computer they have.
