The best resource for Standard def DVD performance is hometheaterhifi
They have objective benchmarks of nearly every player.
The ps3 does not rate too well for SD DVD.
Here is the review: http://www.hometheaterhifi.com/cgi-bin/shootout.cgi?function=search&articles=133#SonyPlayStation%203%20(HDMI)
Probably your best bet - would be to get a PS3 for Blu-Ray and Games, and get an Oppo for your standard DVDs.
They have objective benchmarks of nearly every player.
The ps3 does not rate too well for SD DVD.
Here is the review: http://www.hometheaterhifi.com/cgi-bin/shootout.cgi?function=search&articles=133#SonyPlayStation%203%20(HDMI)
Probably your best bet - would be to get a PS3 for Blu-Ray and Games, and get an Oppo for your standard DVDs.