I have assembled and flown both planes. Both are excellent!!!

The Flash will assemble quicker, The Bandit has better/stronger landing gear and fuel tanks. (My Flash tanks leaked from the factory). The flash landing gear uses pins to hold the struts into the landing gear which can break on not so perfect landings or if you grind too big of a flat spot when installing. For me the Bandit is easier to transport with the 2 smaller wings vs the one peice wing. I usually bring other jets to the field also so the large one peice wing gets in the way. That said the Bandit does take a little longer to assemble at the field but in my opinion worth every extra minute as it is my favorite plane.