Harvest Moon: Friends of Mineral Town on the GBA was amazing, but other than that, I've never managed to get into the Harvest Moon games. I'm not really sure why, since the concept is excellent. Also, it doesn't help that I don't own a Wii or DS, so I've missed most of the newer ones anyway. I'll probably have to give this one a go if I ever get a 3DS.
I never managed to complete Mineral Town though, since my GBA mysteriously crashed when I was about 50 hours in, and wiped all my saves

Saddest moment of my gaming life, that was.