Do you like Japanese people = Nihonjin or the Japanese language = Nihongo ?
Nihongo wa tanoshii to Nihon [h]e tenkiyoshitai kara (dai)suki desu
Japanese is fun & I want to move to Japan so I (love)/ Like it.
Tanoshii to Nihon [h]e tenkiyoshitai kara Nihongo ha ore no ichiban suki na kamoku
As it is fun & I want to move to Japan, Japanese is my favourite subject.
I'm by no way an expert on Japanese but this is what I would say