Japanese language(Help)?

Question:

Im still a beginner in Japanese,I want to know which one of this is right:

Sushi wa suki desu
Sushi ga suki desu

Manga wa omoshiroi desu
Manga ga omoshiroi desu

So which one is right,using ga or wa,if both are right,then when do we apply Ga or Wa?

Thanks

Answer:

Both are right
WA: is more general, like "I like Beans". It's also like the answer to a question
GA: is more specific, like "I like (that) bean". This isn't an answer, and is also as if youre saying it of your 'own accord'
anyhow, both are right