So i am a little biased...personally i like a combination of yoga and pilates, actually pilates comes from yoga!

Yoga is a bit slower than pilates. Depending on the location it can also be a little more spiritual, have a little more meditation and breathing associated with it. You might want to research the various types of yoga (hathe, ashtanga, bikram...) to decide which one is more for you. Yoga at a fitness center, tends to be more fitness oriented and less spiritual than a yoga center.

what i teach is fitness yoga - hatha style, so the focus is on postures and a i do a little bit of relaxation at the end.

Namaste!

hannah