Re: ibanez j custom question
Fit and finish on the "current" J Customs tends to be comparable but more consistent to what you're seeing on Japanese Ibanez guitars; a really good production Japanese guitar should hold its own with a J Custom, but they seem to be "good" specimens more often, based on my limited sample I've played.
The early ones, the CT, CST (former RG7CST owner here), ART, PAINT, etc... kind of a different story there where fit and finish was still great, but they were super small runs and usually with very unusual features or finishes. Even the plainer ones, like the CT, were back in 97 or whenever kind of an anomaly - a flame maple topped mahogany guitar with a rosewood headstock veneer, from a company almost exclusively known for its solid finish basswood guitars.
Today, you lose some of the over-the-top aspect of the finishes (if you've never seen an ART or EGYPT, do some googling), but you also tend to see more unusual materials for Ibanez - a lot of mahogany with flamed or quilted tops, etc. They're produced in greater numbers than they were, so they're probably less "collectible" (which I'm 100% fine with), but if you find one whose specs work for you, they're great classy-looking workhorses.