Which did you find harder? If the number of pages of the books are anything to go by, SWITCH seems to have about half the content ROUTE does (although of course, that's no way to judge the difficulty). I didn't find anything in ROUTE to be overly difficult, just took a few different explanations to get my head around certain topics like OSPF LSA's, IPv6 addressing, BGP etc...certainly nothing like the difficulty of learning how to subnet at CCNA level!

Which did exam did you find harder? And which topics in SWITCH would you say were the most difficult?