Would you rather Hextech Key drops be based on 1 chest per week, or 4 chests per month? [poll]

http://www.strawpoll.me/10004419

Currently the system decreases your odds of getting keys based upon you earning an average of 4 keys (12 fragments) per month.

I think this is bad because it makes the system feel a lot less rewarding in the second half of the month when you're going very long periods (13 days for me) between getting any key fragments.

Given that the system wants you to get approximately 12 fragments every month, why not change it to let you earn 3 fragments every week instead? You get the same amount of keys and opened chests, and you don't feel like the system isn't doing anything due to long periods between drops.