As has already been mentioned, get what suits your way of working best. When I first started making music, I was using an old Korg hardware sequencer, my first computer based sequencer was Noisetracker on the Amiga. I later got an Atari and used Cubase for years, then they rewrote the program and changed everything, cut out most of the hardware support (which I needed), so I switched to Logic. Never looked back.
At the end of the day, when your tracks are rocking on the dancefloor, nobody will know what sequencer, synths, samplers or whatever you used. I've even heard good tracks made on the Playstation. Basically, use what you find easiest.