Maybe it was the perfect weather or the howler monkeys or the thousands of butterflies, but Palenque ended up unexpectedly being our favourite Mayan site on this trip and second overall (after Tikal). It has probably found the best balance between restoration and jungle setting, protection and letting you climb/explore, while being large enough to explore for hours without having to get lost or walk long distances through areas of no interest, Touristy but not too crowded also. Unfortunately we visited on a Monday and the museum was closed. 

Palenque is not hard to get to, it just takes some time so go the distance but is worth the effort. We arrived from San Cristobal de las Casas by colectivo through Ocosingo in 5 hours. Buses go the long way and take over 9 hours. We left "directly" to Xpujil through one of the colectivo companies. This only took 6 hours and involved taking a colectivo to the highway junction north of town and them putting us on a passing bus from there. Interjet also currently flies directly to Palenque from Mexico City. 

For what it's worth, we were warned by several people before arriving that Palenque was a hotbed of food poisoning so maybe a little extra care is due when in town.