Should i sell my 60D and buy a 6D

[peety3]

Thanks. I think ill start getting better lenses that will also work with a ff cam. But still i think my 60d shots are not always 100% sharp even on fast shutter like 1/500. So was thinking it might be the chips fault?

It's not the chip's fault. You can blame it for bad color, high noise, and a few other conditions, but non-100% sharp (an optical issue) won't be the chip's fault. It probably boils down to a combination of poor settings, poor technique, and/or poor glass.

If I look into my bucket of favorite shots and spin the time machine back to when I shot almost every one of them, I come up with this observation: give me the same lens and a Rebel camera, and I can replicate the shot. Give me a 1Dx and a junk lens, slim chance I can replicate the shot.

Sounds like you haven't had the 60D for long. Take a deep breath, buy a few books or take a few classes, and see how far you can grow. When you can articulate exactly why your 60D is insufficient for your skills, consider the upgrade. However, you'd better have good lenses in your bag, or you'll be utterly disappointed with the "upgrade".