What is the best Pilates certification?

My preference and training has always been classical, since these certifications honor the original teachings and philosophies of Joseph Pilates. I have been trained and certified through www.powerpilates.com. However, their are many benefits to be gained through keeping an open mind and training with all different styles of pilates, both classical and contemporary. The most important thing is to find a certification that fits your style and clients the best.