Smartblu/FTI 4x and Verbatim 6x(not LTH) 25GB BD-R's are definitely two of the best choices for 100% trouble-free standalone playback. The Smartblu's, being 4x TDK's, are a little more compatible with older burners.
For archiving, there are exactly 2 choices currently. Falcon/FTI and Panasonic. These are the only manufacturers who have come forward with the results of accelerated aging tests on their Blurays. They are both capable of passing the 50+ year mark in these tests. I suspect its not a coincidence that these two are about the only ones left still using only Japanese materials/technology to produce their Blurays. Longevity of BD-R's coming from other manufacturers is anyone's guess, though I know from personal experience it can be very short with the likes of Optical Quantum and Merax/Optodisc media.
I wouldn't trust the pictures of my precious and precocious children to anything less .