I'm not really sure what my power-to-weight ratio is, but I can tell you that I'm very powerful on hills.
I've never had a problem will hills and I climb them very well. I live in an area called Temple Hills MD.
Any where you ride around here you have to climb. This is my strong suit. I can push this 240lbs over any hill with no problems. I ride with guys that are between 23-45 years of age, and between 124-270lbs and will be waiting at the top of the hills waiting on most of them. Some of these hills are around a quarter and a half to some being about a mile long. All of my rides and training rides consist of at least 10 rolling hills per ride. We have more hills than flats in this area. I know the elevations on two of the rides are 1770 feet over 46 miles and 2403 feet over 63 miles.