Thing is you can argue the pros and cons all day long but in my humble opinion torque is the way forward for an every day useable engine. It why my next car will be an oil burner and my next bike will be a V-twin.

Oil burners have improved so much over the past few years - they're no longer lazy noisy tractors and are even catching up petrol engines in terms of peak power output now too...... but with easier delivery

Sure, nothing touches a petrol engine spinning at high speed for top end performance but my ST very rarely gets above 4000rpm on a standard run to I've got none of the benefits of a petrol engine with all of the drawbacks....
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Eco-warrior