I agree with my esteemed cohorts.
I live only 5 or 6 miles from both, and George Wright is the clear winner, and 7-3 out of 10 plays is pretty accurate.
The conditioning that was horrible until about 2 years ago is vastly improved. The greens are not tour-fast, but they run at a solid 9-10. They have been considering some sort of restoration work on the course for a while now, and it could easily be among the best Ross courses in Mass. with a little help. The course has been making subtle improvements for a few years now, so they may get halfway to a restored Ross on their own. Holes 4-5, 7-12, 15, and 17 are standouts.
Not to say Franklin Park is any slouch itself either. It's less challenging than GW, being more wide open and about 6000 yards compared to GW's 6400. I do, however, consider the place charming. There are many places at FP that give the feel of the 1895-1910 golf, even though the course on the ground represents 20s Ross with some modifications to improve conditions that closed the course in the 70s. There are no public courses in Boston that quite give the traditional wide open feel that FP does. There are wide open modern courses, but when the fescue blows in the wind and you have 18 push-up greens, FP has the feel of the classic Boston privates. Holes 3-4, 8, 12, 14, and 18 are the best holes at FP.
As a side note, you definately get a better picture of Boston's melting pot of races and cultures at FP, whereas GW generally serves the suburbanites on the southern side of Hyde Park. If you try FP, you will usually see something you wouldn't see playing golf elsewhere (it does sit on the edge of a very densely populated area, and many people are using the surrounding park for picnics and other things besides golf), and you have a good chance of playing with someone having different background than a playing partner at an upscale public. I've always had a great time with this quality of FP....totally fun. It's also the only place I've been that let me play for free once because they couldn't get the credit card machine to work...they didn't tell me to go home or go get cash...they just saw that I loved golf, and they wanted me to be able to play! The guy in the pro shop just pointed to the first tee and said "just remember us!"
So my point is that golf course greatness-wise, GW wins over FP 7-3, or even 8-2. But coolness of experience + golf course-wise, they might be even!