I am using AAS for my ds5, but I also plan to supplement with
Words Their Way
when we start getting into more of the phonics/spelling rules.
The approach, in a very brief nutshell, is basically just this: the student is presented with a bunch of preselected words that she supposed to sort, revealing a phonics, spelling or vocabulary pattern or rule. They are also supposed to find exceptions or variations. I like this approach because the rule is discussed, but the students have to figure it out for themselves first. There are games and other activities too, but the key feature of this program is the sort.
So for example, a child would be presented with a bunch of small cards on which the following words appear:
bun, fuss, luck, lump, trust, plum, crust, June, cute, rule, tube, tune, huge, cube, blue, glue, clue, due, true, truth. They need to read each card and figure out which words should be grouped together and why. They would write this out in their word study notebooks. Each pattern group is usually studied for a week.
The next week they would sort this group:
rude, crude, flute, mule, fume, chute, dune, use, fruit, suit, juice, bruise, cruise, new, chew, drew, new, stew, few, dew, brew, fuel, build.
See, they would learn additional long-u phonogram patterns.
One word of warning: the book is not open-and-go. It is a text meant for classroom teachers, so there is quite a bit of theory presented. There are lots of activities for each learning stage, but really the lesson plans are up to the teachers.
I just thought I would throw this out as another option. It's really a very different way to study phonics, one that is more discovery-based, but it is also quite systematic as well.