Champ rewards after 45 levels
I play LoL for fun, and really don't care to own every champ, or play every champ. So when the leveling was opened up, I decided to save my champ shards, and after 45 levels the selection of champs I have received is fairly varied. 98 shards received in total, 31 are 450 BE champs, about 30%. And for 6300BE champs i received 12 individual shards, 3 doubles for 15 in total, about a 15% ratio.
edit: Just around 48K disenchanted BE value.