I'm still looking forward to getting Pokemon Moon, though, which looks to be the most grand sort of experience so far. On the other hand, if you want to see how the classics have been redone, go for HG/SS or OR/AS. Maybe you also might want to work your way through the rest of the stories that you missed at some point. (I'm biased toward Kyurem so I went pretty nuts over B2/W2 as well...)