help with water movement please

[xtaze]

hi all,
i am currently building a 180g reef tank and would love an answers from pros.

i have to decide between 2 options for my mixed reef (sps top)
its a 72x24x24 and the two options are

either:
vortech mp40wes x2

or

tunze 6105x2 controlled with my reef angel


for both options i could keep the 2x 6045 i have currently but would prefer not to.