We rented in Clermont in 2009. The house was beautiful with a large pool and the price was great. We did have to "commute" with everyone else down 192. But it prolly took us 15-20 minutes to get to AK. We were only a few streets up from the superwalmart on 27 so it wasn't that far.
Like bentleygirl said, pay attention to "where" in clermont the house is before booking. We took a drive one day up 27 North. There's nothing up there but rolling hills and a campground for miles.
As far as we could tell, they only way to WDW is 192. You go under the new western way too but that appears to be a round about way to get there.
If you book anywhere west of wdw entrance, look for Black Lake Road and/or Sherberth Road. This will bring you to AK lodge area. The traffic is bearable once you get to disney property.