thoughts on which one is "better," aside from the fact that one can fold up?

http://www.amazon.com/GuideCraft-15924W-Kitchen-Helper-Natural/dp/B000SQNAQC/ref=pd_sim_hg_4?ie=UTF8&refRID=0CHSWFYXKHW0BAKP6Y24

http://www.amazon.com/Little-Partners-Adjustable-Construction-Satisfaction/dp/B001ECHXVC/ref=sr_1_1?s=home-garden&ie=UTF8&qid=1424029068&sr=1-1&keywords=leARNING+TOWER