It depends on the song and what I am going to play that determines the key signature.

Since I am not very proficient on my wind controller I stay with the simple key signatures C, F, G, D, Bb or their relative minors.

It doesn't matter what key signature if I'm playing guitar or bass as I can play in all keys with these instruments.

I'm a real hacker when it comes to the keyboard so the fewer sharps or flats the better. I can usually figure something out on the keys but it takes a long time.

BobH is a finger picking guitarist so when he comes over the key signatures are usually C, G, D, A, or E.

When JonD comes over we make up key signatures!

If I have to pick my favorite key signatures they would be Em or Am.

PS - I only sing in the key of Z.

I think my wife has started to show the first signs of dementia.
She said she can't remember what she ever saw in me!

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware