I'd say it depends a lot on your background. Pilates is nice in the sense that it's more rep-based and rhythmical. Also, it yields faster results in terms of weight loss, muscle toning, etc.Yoga, granted, is more flowy, but better for stretching and lengthening the muscles than pilates in my opinion, and improving flexibility. It depends where and how you do it but what I love about yoga is that it's a lot less "you're doing it wrong" than other practices. If I were you, I'd try both! :)