One's a Lexus and the other's an Infinity.
You can't go wrong either way--but the Saltiga costs $150 less
New Saltiga's coming out in the US in July of 2011. But Shimano also re-designs Stellas on the average of every 5 years or so. Shimano tends to tweak models much more than Daiwa does.
The key for me was--Saltigas have a manual bail. No flip-over issues. The 10000 and smaller Stella SW models have an automatic bail with an internal trip.
The 10000 and 8000 Stellas, also, are the same reel--only difference is the spool of the 10K holds more line. If you go Stella, I'd go with the 10000.