There is a difference between BJT (little) and BJT (power). Most people do not know how to make a Power BJT work so they have moved to IGBT which is a BJT with a MOS-Gate, also, people use MOSFETs for power because they are fast and easy to use.
As far as I'm aware most amps still use bipolar, unless you're talking Class-D amps? - there was a short term 'fad' for FET amplifiers, but it didn't last long, too expensive, too unreliable, and their supposed 'benefits' weren't true.
This MOS vs. Bipolar Transistor Comparison chart outlines the main differences between these transistor types used for amplification and switching applications
Depends upon the application.
BJTs often work better for small signal linear circuits.
MOSFETs or IBTs often work better for switching or power circuits.
As far as I'm aware most amps still use bipolar, unless you're talking Class-D amps? - there was a short term 'fad' for FET amplifiers, but it didn't last long, too expensive, too unreliable, and their supposed 'benefits' weren't true.
I remember that one, but the 3N204 is (or was) lower noise and higher frequency rated, a better 2m & 70cm front-end device.
The 40673 has worst case noise 6db @ 200 MHz, while the 3N204 is max 3.5db @200 MHz and 5db @ 450MHz.
All pretty abysmal now, compared to the later stuff like HEMT devices!