BC's aren't decent suspension components?
I'm super happy with the BC's on my outback... they're awesome for being cheap $1000 coilovers. Not that I have much choice, since the only other option for outbacks are Megan Racing which are more notorious that torious.
Keep in mind that a lot of the "stanced" Subarus these days are ridiculously modded... notched frames, cut-up inner fenders and the like... to get low/wide w/o bagging. Also, when you go that low and/or put the tire on the fender, you're basically committing to a show car, which is kinda why people go w/ cheap coilovers I think, since you'll never notice the handling difference of the better suspension unless you raise your ride height back up.
But hey, if you can put together a stanced ride that also handles well and isn't just a conglomeration of as many aftermarket JDM parts as you can afford, you'd get my vote.