These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Best Known for the Fanservice: The one scene most people remember from the 4th film, is the female doctor getting her pants ripped off towards the end, and spending the rest of the film running around in a t-shirt and panties. That, and the alien princess giving the heroes a death sentence by showing them her breasts.
The one scene that most people remember from the 3rd film is Tammy doing a striptease while under the hypnotic spell of the Leprechaun's magic coin.
Surprisingly Improved Sequel: As absurd as the film might sound from its summary, Leprechaun In The Hood is generally considered to be the best film in the series. Then again, some people prefer the first two sequels over the last three.