I like Voyager and I like Enterprise. Most criticism of Enterprise I have seen was based on nothing - feeding on the vague pre-existing notion that "everyone" hates Enterprise, or stuff like knee-jerking in reaction to the intro song (which I didn't mind, either). That's not to say there aren't some people who genuinely have things about Enterprise which stop them from enjoying it.
Not all Enterprise episodes were great - for instance, I thought the inclusion of the Nazis was really over the top, but then again, the same is true for all sci-fi series I know: SG1 certainly has a lot of stunningly bad episodes, and so do TNG and DS9 or the original series for that matter. It's just fairly easy to ignore the bad episodes in retrospect.