Really everything. They have less flex than my Manners, the attention to detail is fantastic, the action inlet was perfect (granted small sample size of 2/2) and the barrel channels were perfect. My EH1 is the better of my two Manners fit and finish wise, but it also had a gunsmith build it, so it could have been a blank and he inlet it, I'm not sure. My PRS2 barrel channel is skewed to one side over the other, and the Mini Chassis inlet is poor, and the bedding job to bed the Mini Chassis was poor. The AG stocks also weighed their advertised weights, and have a texture on them that I prefer; almost feels like spray on bed liner (you could probably get Manners with that material as well, never looked into it). Overall I won't buy another Manners with these companies in the current market as I just think you get a better product for your money. It would be similar to buying brass that already came with the primer pockets uniformed, chamfered, flash hole deburred, and weight sorted vs just bulk brass. They both get the job done, but one required a lot of time for me to have the way I want it (granted there is probably some OCD in there coming out!). I don't know what the current price is for either, but I would pay more for an AG than a Manners. I'm sure others will have other opinions. Again, this is a sample size of 2 for each brand so pretty small.