Oh, SRG, you're about to get to some really good stuff. What a large segment of the DP arc lacks in action (at least compared to the RS and FRLG arcs, which are the ones I remember most clearly) it more than makes up for with humor. Diamond and Pearl's manzai acts are among the funniest things in the series (although I do recommend reading it scanlated, instead of the VIZ translations, since a lot of the scanlation sites have translations and explanations of the wording of the original Japanese jokes as well as the sometimes-subpar English ones). Diamond is also just adorable in general - he's definitely my favorite protagonist.
I liked the Emerald arc, despite the fact that it felt kind of contrived at times. Emerald was a pretty funny guy, if not quite on the same level as Gold and Diamond. The battles took me back to my own Battle Frontier matches, except they were better-played (which probably boosted it higher than it should have been, if I'm being honest), and Sceptile finally got his time to shine.