Have you looked at what RCI has on their website
for the Explorer Of The Seas?
It is a Voyager class vessel, which prior to the arrival of the Freedom class was the largest group of ships anywhere (note I said group, I know for a while the QM2 was largest).
Explorer is a huge vessel with lots of "stuff" to do. Ice shows, parades down the promenade, etc. You made a good choice.