The present rifles are some of the most accurate 94's I've shot, however; I've never considered the 94 to have any accuracy problems for the role they were created. I'm an old Winchester kind of guy, so I'm bothered by the springy trigger and the tang safety. I also think the current open sights are an abomination.
The current guns are put together quite well. They work and they're accurate. Where the pre-64's have 'em is in the looks department. The pre-64's just look more like a real Winchester. Nicer bluing, crisper lines on the receiver, better sights, steel buttplate etc.
For a working rifle, both will do the job just fine.