http://www1.shopping.com/xSBS-Nikon...-for-Canon~PT-xPO~P-1~PRDLT-22438253-44520765
You decide for yourself. I took the Super coz it's has more zoom and flash power, but the recycle time is faster in the Nikon SB600 brand.
I am happy with the Sigma EF-530 DG SUPER TTL Flash due to the fact it zooms out to 105 mm coz I do alot of party photography at night.
I am just looking for a Diffuser for the flash unit.