I'd go with the flowtoys, visually they are more versatile, they look incredible, extremely tough and even if you manage to break a part(which is pretty hard to do, I've been using flowtoys tube systems for ages with no problems)
if your going for the flowtoys though I'd recommend getting the modular systems rather than a fixed staff, then you can have some flexability between contact staff/doubles, poi etc, all very well designed and easy to use, check out all the tubes,caps,connectors on
http://www.flowtoys.com/home.php?cat=27 and buy your lights seperatly:)