Hard to say without knowing which aspects of the last few you didn't enjoy.
The next few are a mixed bag, you've got some good stories with good art, some good stories with not-so-good art, and some stories like Inferno with great Carlos art, but people aren't fond of the story.
Could try 23 and see how you get on.
27 contains the Pit, which people seem to consider a bit of a milestone where Dredd became a bit more police procedural.