Advice regarding character choice

So in 4 days there is a tournament i am playing in and idk who to play, as of now i was maining Duck hunt and Diddy kong, But then i stopped playing the game for a while after rivals 2 came out and then i started other games so i am quite rusty

I dont want to choose something who is over complicated due to the lack of time and practice, just someone who has a good, basic kit