I would imagine the 2 year course to be in more detail than the 6 month, so it would probably be better, but you can learn what you need to know in those 6 months or less.
I am doing both at the same time. I am in school for IT and when I learned enough that I could pass A+ I took it and got certified. Same with Network+. Same with my MCP (W2K Pro & Server).
I am taking 70-218 next. (Mananging a Windows 2000 Network)