What's your budget? And by that I mean time, money and energy. Any of these bikes is quite likely to bring you moments of sheer joy. And any of them can bring you sheer frustration. I loved my KTM. Best bike I ever rode, but worst bike I ever owned. Maintaining it was a bitch. And you have no dealer. I had a 2006 or so GS 1200. The cost of ownership for all things BMW from the bike to the keychain is double anything else. Go price out a skid plate for a GS and let me know how it compares. Seems people think if you an afford the bike, you can also afford to pay too much for extras and service. I can't speak about the multi having never ridden one. I understand they are awesome, but expensive and they can be finicky. The new strom. I don't know. Looks good, seems like a good bike price point wise. I'm not sure enough changes were made to the engine to make it feel any more powerful. Our members who currently own them can speak to that hopefully. You know what, your bike still has life in it, you are in no hurry. Ride em all. Buy the one that most turns your crank. At least you'll always smile when you see it in the garage.