In the end, wrath stays at 1, since WOW TBC Gold it is impossible to beat that openingline "The birth of your parents, the forests and the lordaeron whispered Arthas." Wrath is an absolute WOW for me. I first heard of the game during the tail end of BC. I tried the free trial during the sunwell patch. My first content launch experience was the Zep to Howling Fjord. Just thinking about it brings me back to being a little kid again .
I'd likely put Vanilla and TBC higher because they truly captured how the world felt and all the different classes and races doing awesome buy WOW Classic TBC Gold games - the warlock who burns the ground beneath his feet, the druid moving through the forest and shapeshifting. It's like WoW.