Well, I didn't know this was talking about archiving.
But if we are talking about that.
I normally never used Jpeg at, all my viewing was done on down sized and sharpened TIFF's. Jpeg was purely for posting on the internet. I always saved the RAW files except in my early days and I now regret so much! Wish I still had them.
And now since I have revamped my computer and monitor situation a lot of images will be reprocessed especially if they are gonna be printed. And how I do things will change a lot. I'm thinking for straight up viewing it will just be full size Jpegs because that is how I end up delivering the end product to the customer so not a huge need to have them in any other extra format. Unless I'm printing I'll be doing that in TIFF and probably another color space. Not decided on which one yet. Definitely saving the RAW files, that will never change.
Shooting only Jpeg's? That's just sacrilegious! Jesting of course. But yeah, that doesn't bode well with me because for one I shoot with post processing in mind. I'm doing stuff to the images to create the end result I want. Besides the out of the camera Jpeg's are of poor quality even if I was able to get exactly what I want out of the camera. Which never happens anyway. Especially the in camera sharpening and noise reduction. It's very mushy particularly at higher ISO's.
But I am doing a lot more for hire shooting and with my personal shooting I'm trying to up my game. I'm trying to take my photography to the next level. Maybe full time pro, not sure yet. But I want to be able to shoot at that level. So no out of the camera Jpeg for me, saving RAW files and post-processing everything.
But that is just me.