EMG's, Seymour Duncans, or Dimarzio?

I have to ask , why would you want to change the pickups? If I remember correctly the american deluxe strat has the cobalt noiseless pickups with a hotter wound pickup in the bridge slot. These pickups combined with the ash body and all the tonal variations of the deluxe strat you should be able to get just about any kind of sound your looking for. I've played guitar for over 35 years now, many many types of music, and along the way I discovered a couple of things about pickups. Changing your pickups will not change your tone nearly as much as you might think. The four things that make up the bulk of your tone are wood , string gauge ,scale length and your touch. How you attack the strings , if you will. I think it might be wise to try out different guitar and amp combinations before you put out your hard earned cash. Find a setup that works well for you and go from there. In short , if your guitar doesn't have the tone that your looking for changing the pickups will probably not fix the problem. I have seen so many people put humbuckers in their strats thinking that it will give them a les paul sound ,doesn't work that way. A strat is a longer scale length than a paul and the added tension from the longer scale length makes a drastic difference in the basic tone. Good luck to ya !