When I was researching pumps for my setup I looked at the Sicce Syncra High Flow Series (their largest models). Back then (~1 year ago) the Sicces HFs were almost twice as expensive as a comparably sized Laguna pump. It looks like prices for the Sicces have come down a bit, but IMO, the Lagunas are still a better value. BTW, for what it's worth Laguna pumps are also made in Italy.
I have also heard and seen Iwaki's that have been running forever; they seem to be a really reliable pump. They run at higher RPMs (high speed) which means they are great at pumping water in higher pressure situations (ex- from basements or through canister filters), but in terms of efficiency, not the best option if you have a traditional sump and are just pumping water up a few feet to your display.