depends how much time and money you've got.

1) If you've got loads of time and money - buy a top quality brand like MHZ, Hydro & Marine or anything else that takes your fancy. Buy fully adjustable hardware and a ton of props and fiddle around until the thing flies.

2) If you've got loads of time and not much money - build a predator from plans - pretty satisfying at the end of it

3) If you haven't got much time and are stingy like me - go the NQD way, although probably not such good results as with the other two....