My first bike was RGV 250 (Pepsi special) and that thing scared the .... outta me.
Jaouad, you could take the top 5 sport bikes in the world, and in the hands of pro riders, they are probably less than a second apart on track (personally, I think the Aprillia is probably still fastest, but the Beemer would be up there).
Bottom line is that any of these sport bikes have capability WAY beyond your ability, or my ability, or probably everyone else on here's ability. The difference in what you can do on one bike to another will come down to how big your balls are, or how stupid you are.
If you like the Beemer, thats what matters. That its the fastest bike in the world (or not) means .... all, if you can't ride it to the limit, or if another bike is easier to ride.
Friend of mine has a Desmo, and an F4. The Desmo is a weapon, but he prefers riding the F4.
For me, I love the 1198 & Panagale. Sure testers have raved about the S1000, but for me, I prefer the 1198 or the Panagale. Thats my choice, and I don't give a toss if another bike is .02sec faster to warp speed.
If you love the S1000 that should be all that matters, you don't need to justify your choice, but don't .... on someone else that has a different opinion to something that is subjective.
And PS.... listen to the advice you have been given above, from older wiser men, who have been down the same track as you. That S1000 has the ability to kill you faster than you even realise. Treat it with respect dude. If you want to rip it, go do it at a track day, and learn to ride the thing properly, where you can give yourself a fright without life changing consequences.