Probably not going to help you any, but I just completed (save for the couple of upgrades I'm still waiting for) a 3 humbucker SG (AGM3-F). I only wanted a 2 HB kit but kinda stumbled into this due to stock issues with my original order. I'd already ordered the Tonerider AC4 set with the original order and then had to decide what to drop in the middle. Ended up getting an AC2 neck. Three way switch means the middle is always on, but I can dial it in and out via volume controls. Each have their place and I'm quite happy with the variety of sounds I can get with the flick of a switch and the turn of a dial.
Having to pick a favourite, however, is like choosing a favourite child - each can have their good and bad qualities, but in the right mood each one can be your favourite in the moment. :-D
You'd probably be happy with either, but I expect it would come down what you like to play.