They sure are interesting characters, and this is so well drawn!
Paul is my favourite rival too! I thought it was really great how the rivalry developed and intensified over the series, and then ended with mutual respect. I was on the edge of my seat for that league battle, I was hoping for something similar in the Unova league but it didn't really seem that intense... I did like Trip a lot though.
Plus Paul's reaction was very funny when he heard Ash had beat the entire Battle Frontier