divide the connections you see in this graphic by 2.
thats the connectivity of the Aurora 8
http://www.lynxstudio.com/aurora/BKFrame.html
dsub analog in/out, dsub digital in/out, and wordclock i/o, midi i/o for updates.
ADAT for the Lynx is another $225 and there is no firewire card yet.
so i'd say that the Fireface has more connectivity.
Conversion is better than Rosetta IMO.
I own an Aurora 16 with LT-ADAT.