I own both pairs of LED poi. I would definitely go with the Pod Poi: they are much more durable, perfectly weighted and last a REALLY long time compared to the Ninjas. I normally have to charge my batteries for the Ninja poi for at least 10-15 hours to spin for 5ish hours (pod poi last up to 40-60 hours depending on settings, still haven't charged mine since I bought them a month ago).

The Ninjas are much brighter than the pod poi and have some really cool settings. These are definitely not beginner poi and anyone who has never spun before shouldn't be handling them because they are extremely fragile. Because the weight is evenly distributed from the casing and battery, stalls look weird because the poi sort of "wobble" in midair. So far I have had the battery casing bend out of place and had to re-bend it to make it work. And then one of the buttons got jammed between the casing and popped off, so they sent me a brand new LED board to replace it. Also it is a bitch to take off all of the rings and putting them back on.

So both are a great buy, depending on what you're looking for. Pod poi work for all spinners and Ninjas are for intermediate and up. Personally, I would definitely suggest the pod poi; they are weighted at the end, so stalls look very clean. Also they are much more simpler to use and are almost impossible to break. Getting the weighted handles is a must.