G-III
I have no Falcon experience. A great airplane, I'm sure.
The Gulfstream is a very reliable airplane. You would have no regrets. Noise is an issue and getting worse. As far as G-II, Europe and Hawaii can be done. A G-IIsp with winglets has an increase of 7% in performance making Hawaii from SJC no problem most of the time. The UK can be done from Gander most of the time and Shannon to Gander most of the time. It is a no brainer in the G-III. My vote is Gulfstream.
I have no Falcon experience. A great airplane, I'm sure.
The Gulfstream is a very reliable airplane. You would have no regrets. Noise is an issue and getting worse. As far as G-II, Europe and Hawaii can be done. A G-IIsp with winglets has an increase of 7% in performance making Hawaii from SJC no problem most of the time. The UK can be done from Gander most of the time and Shannon to Gander most of the time. It is a no brainer in the G-III. My vote is Gulfstream.