For a few episode Rachael and Joey were really cute together, and in the Barbados episodes it was really obvious that Joey shouldn't be with Charlie and that she wasn't a bad match for Ross (though we saw how well that went). I really thought they were cute in this episode (and the following season premiere) but in a way it did kind of seem that they were running out of story lines and had coupled pretty much everyone else (excluding Monica and Ross, which is wrong on like 18 different levels). Plus, by now everyone knew that she and Ross were going to be together in the end so there was just no point on going to the Joey and Rachael place anymore, though it did make for a few good eps in this season and season 10 (but it was so much better in season 8).
Though my favorite scenes had to the ping pong tournament between Mike and Monica. I particularly loved Paul's performance as Mike in this episode, too. But come on better comebacks Mike, better comebacks!