[Eminem™]

I am looking at the Novation Launchpad and some faders for performing. Which of these will work the best? (Ableton Live 8)

Novation Launchpad: http://www.amazon.com/Novation-Launchpad...71L4RQS9AA

Native Instruments Traktor Pro 2.5 Kontrol X1: http://www.amazon.com/Native-Instruments...RM7ZVPTXDS

Behringer BCR2000 B-Control Rotary USB/MIDI Controller: http://www.amazon.com/Behringer-BCR2000-...K1WBKO32TW

Korn nanoKONTROL2: http://www.amazon.com/Korg-nanoKONTROL2-...OCFGJYO6YT

Or would something else be better? (APC40, etc?)