Proto Rail > Mini GS
The rail has a nicer trigger, better shot quality, feels nicer IMO, and is easier to program IMO. All the mini has over the rail is a clamping feedneck and on/off ASA.
You think that the bullshit trigger they've used in UL frames for years is better than an Axe trigger? Alright.
You think that dip switches are easier to work with than changing the modes with the trigger? Alright.