I'm split. I like the vortechs, and I like tunze. I curerntly use both. That said....
The old tunze wavebox I had, was phenomenal. Lasted forever, and was overpowered for a 125 long. The new replacement needs constant cleaning, and I had to add a vortech to help move water. Oh, and it's practically silent. I think they "new" tunze is probably shopped out to china. It's a damn shame, and their customer support leaves a lot to be desired.
The vortech pumps work, but the wet sides tend to fail (I've replaced 2, and I've got one now that is getting noisy and unreliable. They are also much noisier because the pump side is outside the watater, but then again there is the benefit of not sticking yet another power cord into saltwater, and from someone who lost a couple of colonies to stray voltage, that's a big plus.
It just seems these companies make a name for themselves with quality, and then they outsource everything to china, and just stick the name on it.
That said, I'd likely go with vortech, as you CAN get replacement parts, and they do have lots of power. Not as great at making waves, but the point is to take waste away from coral, and bring food to them, so it really doesn't have to be a raging tsunami of water movement.