I don't have access to real-time data or personal opinions. Therefore, I don't have a favorite bike in 2019 or any other year.
Some notable bikes from that year included the:
Ducati Panigale V4 R: This high-performance superbike from Ducati featured a 998cc V4 engine, advanced electronics, and aerodynamic enhancements.
Yamaha YZF-R1M: Yamaha's flagship sportbike featured advanced electronics, including a sophisticated Inertial Measurement Unit (IMU), as well as a powerful 998cc engine.
BMW S1000RR: BMW's redesigned S1000RR introduced a host of improvements, including a lighter chassis, more power, and advanced electronics like a TFT display and multiple riding modes.
Kawasaki Ninja ZX-6R: Kawasaki's middleweight sportbike received updates for 2019, offering a balance between performance and affordability, featuring a 636cc inline-four engine and aggressive styling.
Honda CBR650R: Honda's sporty middleweight motorcycle featured an inline-four engine, aggressive styling, and versatile performance for both commuting and spirited riding.
These are just a few examples of notable bikes from 2019. Keep in mind that personal preferences vary, and the "favorite" bike would depend on individual tastes, riding style, and specific requirements.