Join Date: Jun 2008
Location: New York, NY, USA
Neither of these bikes strike me as particularly great as heavy traffic-city bikes. For traffic the GT's side cases stick out and will have to come off. If I had to pick one I'd get the S and keep the GS for the rest of your riding.
I'm sure you'll get as many opinions as there are people that respond.
2008 K1200GT, Custom Paint, Vivid Black, Aeroflow WS & Aeroguards, Givi E52 Maxia Topcase w/AdMore Lighting, Zumo 660, Suburban Footpeg Lowering, Sargent Seat
2009 R1200GS Adventure, Magnesium Grey/Black, Adventure Cases, Zumo 660, Touratech Unobtanium Accessories
1974 Norton Commando 850 Soon to be a restoration project