Reply to Novation Twitch or ??

Hello folks

I've been djing for about 6months now and all I have is hercules mp3 e2 console and akai mini midi for effects/add ons. Now I want to buy a new controller for not more than 400-500$ which would be suitable to perform in a gig/pro environment.I had a look at Novation Twitch and it seemed quite impressive with all the buttons and knobs.Also I had a look at traktor s2.Thought it looks better but I feel the Twitch has more buttons/knobs/functions .Please suggest me a controller..!!!

P .S I Will be using traktor only and not serato