Oh, and of course if you're into the Pacific coast, Santa Lucia Cotzumalguapa has a ton of interesting archaeology and a water park that's faded into an inelegant senescence.
Just wrote a little Guatemala Travel Guide: http://thesweetnessoftraveling.blogspot.de/2014/10/guatemala-travel-guide-itinerary.html
My favorite place? The whole area of Lake Atitlan!!! Love it. But I also find Antigua quite charming especially if you appreciate architecture and artisan goods.
They did the last time I was there, associated with one of the older, hotels on the outskirts of town. Although that was a while back so I couldn't tell you the name of the hotel at this point.
