Some of the best Star Wars novels include 'Heir to the Empire' by Timothy Zahn. It expanded the Star Wars universe post - original trilogy in a really engaging way. One of the worst could be 'The Crystal Star'. It had a convoluted plot that many fans didn't like.
In my opinion, 'The Eugenics Wars: The Rise and Fall of Khan Noonien Singh' is among the best. It gives a detailed backstory to one of the most iconic villains in Star Trek. It's full of intrigue and adventure. On the other hand, 'Strangers from the Sky' has been criticized as being one of the less - appealing novels. The pacing is slow and the story doesn't seem to add much to the overall Star Trek lore.
One of the top Star Wars canon novels is 'Lost Stars'. It offers a unique perspective as it follows two characters on opposite sides of the Galactic Civil War. It's a story of love, loyalty, and the complex nature of war. As for the worst, 'Aftermath' had some issues. The plot seemed a bit scattered, and it didn't really capture the essence of the post - Endor galaxy as well as it could have.
Well, it's really subjective, but some often considered among the best are 'Guards! Guards!'. It introduced the Ankh - Morpork City Watch in a great way. As for worst, that's hard to say. Some might find the earlier ones a bit rough, but they also have their charm.
A great Star Wars canon novel is 'Master & Apprentice'. It shows the relationship between Qui - Gon Jinn and Obi - Wan Kenobi in a really interesting way. It has some great character moments. On the downside, 'Alphabet Squadron' was a bit lackluster. The characters didn't really stand out, and the plot wasn't as exciting as other Star Wars novels.
Fans often consider 'Lost Stars' as one of the best. It tells a great love story set against the backdrop of the Galactic Civil War. A commonly disliked one is 'The Courtship of Princess Leia'. The plot of Han having to compete for Leia's hand in marriage just didn't sit well with a lot of fans.
The best Discworld novel is often considered 'Guards! Guards!'. It introduced the Night Watch in Ankh - Morpork in a really engaging way. The characters like Vimes are so well - developed. As for the worst, some might say 'The Last Continent'. It had a rather convoluted plot that didn't seem to flow as well as other Discworld books. However, even this one has its charm for die - hard fans.
In my opinion, 'The New Rebellion' is not a great addition to the EU novels. The story lacks the usual excitement of Star Wars. The conflict seems forced and the resolution is rather anticlimactic. It also doesn't do a great job of building on the existing relationships between the main characters.
One of the often - criticized Star Wars canon novels is 'Aftermath'. Many fans thought the plot was a bit too slow - paced and the new characters introduced didn't quite capture the essence of the Star Wars universe as well as they could have.
The prequel trilogy has its detractors who think it's part of the worst Star Wars stories. The overly complicated trade disputes in Episode I as a starting point for the whole saga seemed dull. Also, the wooden acting in parts of the prequels and some of the less - than - impressive CGI, like Jar Jar Binks, made it a bit of a let - down for many fans who had high hopes based on the original trilogy.
Well, 'The Courtship of Princess Leia' is not well - liked by many fans and could be seen as one of the worst Star Wars novels. It has a rather odd premise. The relationship between Han and Leia is portrayed in a way that many fans find unappealing. And the overall plot doesn't really contribute much to the broader Star Wars saga.