Your expectations are a little high I think, you can not trust any of them on battery life because it's based on the amount of picks taken. These cams set outside in storms, snow, subzero temps and temperature fluctuations which cause condensation on electronics including your batteries. We run a lot of cams and have tried many but I will not by the exspensive cams its a waste of money and just bragging rights.
I've had and still have some old Moultrie cams from 2008 that still take fantastic pics but only use them for back up because of there size and amount of D batteries they take. We're running WG cams now and they are working great, haven't paid over $50 for one yet. I'm not going to name the bad ones and there's a few but I will say every once in a while the ones we like we will get a bad one so I always keep the boxes and receipts for exchanging. Usually it's just that cam and your good to go and last for many years.
I love white flash cams and finally found one that takes the small batteries, its adjustable so you don't get the blurred night picks any worse then a IR cam. I bought a bunch of them and they have worked great this season.
Tracy