I don't get this whole "import quality" thing that I've heard some folk talk about. Maybe it's because I'm Aussie and everything gets imported here.
FWIW I've owned a few USA made guitars, a few japanese and korean guitars and as far as QC goes, Japanese guitars are the most consistent and as far as production guitars go I daresay superior in quality from my experience (think J-custom). Every Japanese fender I've played has been unreal too and a very good friend of mine owns a japanese and USA tele which are almost identical on an appearance level but IMO the japanese one has better fretwork and sounds better to my ears. Also, think about the QC inconsistency that gibson has had of late, you would never see that from a FujiGen plant guitar. IMO as far as custom shop stuff goes, the USA still churns out the best stuff but when talking about production guitars I beg to differ.
If you're thinking midrange stuff, The best way to go is used japanese gear as mentioned earlier. You can't compare chinese and korean instruments to japanese ones. Japan is in another league.
EDIT: I've played some really average sounding standard series ESP's, was moreso speaking about ibanez.