Regarding tubing or a pod, I'll definitely choose tubing. Here's why: (1) the pod is big and bulky, (2) if the pod isn't inserted properly, you waste the entire pod and all the insulin inside of it... (and the corollary: 2a, you can't see the infusion site with the pod to know it's inserted properly), (3) if I had a PDM controller that wasn't attached to me, I'd surely lose it (the PDM, not my mind). If you exercise a lot, I'd be concerned about sweating underneath the pod; it does cover quite a bit of surface-area on the skin and doesn't allow for ventilation. Some people love the Omnipod, but I've heard horror stories, and lots of endos, including my own, don't like to prescribe it.
I use the Medtronic Minimed pump. I play soccer and street hockey with my five-year-old all the time, and it's never gotten in the way. I've snagged tubing on kitchen cabinets and doorknobs at times, but only when wearing pajamas. During the day, I always wear a belt and have the pump clipped to it (with excess tubing tucked in the waistband) so it doesn't get in the way. Using pockets is a bit more dangerous with excess tubing getting in the way. I use about 30 units a day, so reservoir size is not an issue for me.
The real decision, I think, is Medtronic versus Animas. Medtronic has been around longer, but it's interface and display is a bit "old school", dark and black-and white. The Animas display is in color, which looks nicer but may not offer more functionality. But if you wear a CGM, the Medtronic pump can also be the receiver; Animas doesn't do that. Conversely, you can control an Animas from either the pump itself or via a wireless connection from the meter (the "Ping" system). Both have meters that report the BG to the pump, but only Animas lets you bolus from it as well. Personally, I think the Ping functionality is more important for women who keep the pump near more "intimate" parts of their body and can't get to it easier.
Other things of note: Animas is slightly larger than Medtronic, but is also waterproof. Medtronic is OK to splash water on, but shouldn't be taken in a pool, bathtub, or ocean. (Many will say that they are equally resistant to water, and the claim by the manufacturer is strictly an indication of the liability they want to accept, but I feel safer taking them at their word. If I had an Animas, I'd feel comfortable swimming with it. I don't swim with my Medtronic).
Hope that's enough information for you!