It's my favourite as well. My parents watched TNG and DS9 when I was a kid, but Voyager was the first Trek that I went out of my way myself to watch. Kathryn Janeway is high on my list of personal (albeit fictional) heroes.
VOY is the most scientifically illiterate of all Trek series. They tried to sound at least as "sciency" as TNG, but:
They spent half a season searching ores on planets while mentioning a gas
They invented the "iso-" pseudo prefix to hide they didn't understand the metric system (in a prior episode they were alarmed by a cosmic event generating as little pressure as 10 atmospheres).