Heh... probably just means nobody here has used those specific players before (although it's really just been less than 24 hours since your post). Most regulars here probably have older players (or another brand like Panasonic) or maybe upgraded to something higher end like an Oppo (or something 4K UHD) by this point in the BD format's (10-year) lifespan.
Honestly, I doubt these are all that diff from typical Samsung and Sony players in their ballparks -- ~$100 BD players that can do a little streaming (especially using Netflix) have been around for a long time anyway. Maybe google and check Amazon's user reviews for any known issues w/ them and general customer satisfaction.
Personally, I don't care for either brand myself, but if I had to choose between them, I'd probably prefer Sony unless I find specific issues w/ that model. I'd also recommend looking into something from Panasonic instead... although I did lose a bit of faith in the durability of their BD players (from several years back).
If you have a lot of DVDs laying around, the Samsung will do a better job upscaling them to 1080p. The Samsung will also convert DTS-HD MA to Dolby Digital 5.1. This is useful if you have an older A/V receiver or a sound bar which doesn’t decode DTS.
If you care about knowing the bitrate of the audio and video codecs on the disc, the Sony will give you that information and the Samsung won't. Both do an excellent job with streaming apps. In terms of Blu-ray performance, I don't think there is any difference. I would agree that generally the Samsung players I've had in the past do a better job upscaling DVDs than Sonys do, but my Sony is a 6500 so maybe the 6700 is better.