They produce identical code. There are a couple of reasons why you might prefer for (;;) but it is all just personal preference:
Some compilers will warn you about conditions that are always true. for(;;) will not have that problem.
for (;;) literally reads as "Just loop forever!", whereas while (true) still appears to have some kind of condition.
I say pick one and stick with it. It doesn't matter as long as you don't switch between them arbitrarily.
