There is no "best" anything..... it's all up to what YOU are comfortable with and can afford.
I use SoundForge for editing and N-Track Studio for multitracking. With Fruityloops, I have a whole studio for less than $250. (N-Track is $60, I got SoundForge on sale for $99 and Fruity was $70)
You may like other programs; go out and start downloading demos and try them all out!