 before, I don't like the terms "perdurantist" and
"endurantist", which were popularized by David Lewis (the same
nut who thinks that possible worlds are "really real").

The view that I recommend is Whitehead's "process philosophy",
which is four-dimensional, but it doesn't suffer from the flaws
that Simons (and others have been criticizing).  It would be a
mistake to call W's processes "perdurantist" because he most
definitely makes time and processes acting in time a very
important part of his system.  H