Sean here, from flowtoys
obviously my opinion on this matter should be suspect, but I try to be as balanced as I can!
Trick Concepts is a great company and good friends of ours and I can tell you their oggpoi are definitely more durable than ours. Jaz is a great engineer and came up with a really durable design.
I still personally prefer our oggpoi for 4 reasons:
1. the weighting is nicer with the heavy side of the ogg on the end of your poi, though some people may not notice the difference.
2. the shape/aesthetic looks nicer to me with the fat side at the end and no black cord.
3. I prefer our leashes and handles.
4. our lifetime warranty and cheap replacements/spare units means you can have an extra one or two ready in case of breakage and enjoy them as mood-lighting in the mean time!
that said, they will all eventually have trouble charging due to the design of the oggz themselves, and none are as durable as our crystal poi of flowpoi! but of course they look different...