Better version on BBT usually means many many many many many many many factors, Tenshi's releases are usually rejected on BBT by default only due to the hilarious file sizes. There are a total of 56 anime's out of the huge amount of animes I watched that I actually archived. They are all n 2 BD rom disks 50 gigs each disk. 56 out of over 700 anime titles. None of them are Tenshi's releases, in fact half of them I encoded myself using someone's subs.
It all depends on how much bandwidth you can spare and what and if you archive, I can spare 300 gigs of transfer data monthly or more if need be, I have no data limit, but BBT considers those that have limits and that is why they will take optimum release by comparing video/audio/data size/subs quality/typesetting/translation quality into consideration.
That last one is recently limited to how lazy the group is and modify CR scripts or translate on their own. CR tends to forego stuff that annoy me so I hardly ever archive unmodified subs.
I'm a whore when it comes to honorifics or localization. DO NOT WANT LATTER, NEEDS FORMER!