We'll have to just disagree on that one, Ron.
The little 3.5 Ecoboost in my F150 does an awfully nice job. Two small turbos instead of one big one means they spool up a lot quicker, and there's really no noticeable turbo lag. The same can be said for the Mercedes... again, two turbos, but with a 5.5 V12 picking up the slack while they spin up. For a big, heavy car, it will really scoot... in fact, it's the quickest car I've ever owned. My first sub-13 second car. Cubic inches AND forced induction is a really fun combination, even worth the 91 octane fuel bill.
The worst case of turbo lag I ever experienced was a rental car in Germany. We had an Audi A4 wagon, with a teeny little turbo Diesel. It had a nasty habit of slumping over a second or two after you launched into an intersection... that was unnerving until I learned to get the RPMs up a second or two before the light changed, just to get a little boost going.