I've used kd/windbg at Microsoft, lldb at Apple, gdb at Intel; WinDbg(Next) and kd are still my absolute favorite.
Coolest feature of windbg is time travel debugging - https://learn.microsoft.com/en-us/windows-hardware/drivers/d...
Coolest feature of windbg is time travel debugging - https://learn.microsoft.com/en-us/windows-hardware/drivers/d...
(Warning: contains me trying to play Doom :)