Adobe Acrobat 7.0 Professional.
Every now and then I get a plot where it didn't render some items, didn't include some items or only partial items, from dimensions, to text, to leaders, hatches, model or paper space... but I don't think I would ever fully trust any application so much that I would =not= check it's output before sending it to the client or governing authorities, so it's no biggie for me.
I find it handles hatches, wipeouts, background masks, etc all fine, which are normally the tricky stuff for some drivers, and the file sizes are quite manageable. I'm not too keen on how it makes a solid hatch into a lined hatch, because on SCREEN it can sometimes look a bit dodgy, but it always prints as expected.