I got my Samsung 3D BD Player as part of the package (got a 58" Plasma, it's wall mounted...). I honestly have not tried a 3D movie in my PS3 since updating to 3.55 CFW... the BD Player is so nice and feature rich, and ideally more suited to the task, I haven't seen the need.
From what I've heard, there are a lot of complaints about choppiness in 3D movies. Games on the other hand, have played fine... I've played Stardust HD on the PS3, which does 3D, and it is nice and seamless (unlike CoD:Black Ops on our 360, which uses "Side-by-Side" mode, instead of telling the TV to go into 3D mode, requires us to manually set the TV's 3D mode).
While some have said the PS3 3D playback is in true 1080p, I'm not sure how it can be - even if it doesn't pass DTS "True" Audio - because of the bandwidth. I almost thing it's using a Side-by-side mode and sending the right command via HDMI to the TV. The PS3 has 1.3 HDMI, but 3D is supposed to use 1.4 (higher bandwidth, 1080p x 60fps). I contend the PS3, released in 2006, at the infancy of Blu-Ray, probably doesn't have the horsepower to deliver 3D content like the more modern players.
If I find some time, maybe I'll do some comparisons.
P.S.: Good choice on the Samsung.... I love the networking capability, though I'm still working on getting my TV to access my NAS as a share drive. It is hackable! With the right setup, you can install a widget that installs the hack and allows you to run code from a USB stick. Vudu apparently is now offering 3D content, too... and of course, you have NetFlix and Blockbuster online.
Working hard on UberCFW, incorporating NTFS, sub-free NetFlix and Blockbuster, PSN cheat system with built-in swearbot and MAC-spoofing, Adding MKV, RAM and BIK movie support, and Xbox360 emu*.
*not really. Get a life, newbs...
My YouTube channel: http://www.youtube.com/user/BenJeremy