I've spoken to a few LEO's in my city, most of them have standard issue lights which definitely do need an upgrade. Interestingly enough, I noticed one carrying what appeared to be a very cheap-looking SF clone, i.e. 2xCR123, general shape was SF-like but a bit rounder on the tailcap and looked like Type II anodizing as it was on the shiny side. When I asked him what it was, he had no clue and said it was issued by the dept. I didn't ask to see it since he was on crowd duty.
The tactical units appear to sometimes be a bit more selective, but it still differs from one to the next: one tactical unit LEO had a beat up, older SF 6P with the stock incan bulb. He said it was awesome but didn't know anything about the new upcoming models. The other had no clue when I mentioned SF and other names and didn't seem to care what was on his duty belt, just that it was bright enough for the task.
I think it's like any other job: some care about the tools they use, others just see it as tools that allow them to do their jobs and nothing more. So, while we may suggest that they need better lights, they don't seem to mind either way.