Reply to Is it worth to upgrade 5d with 5d mark II ?

Hi, I have an old Canon 5d. Is it even worth upgrading to mark II?

Or should I rather consider a 6d?

I have no intention on spending too much money on something like 5d mark III.

5d mk II or 6d?

I know 6d has better ISO performance, but I like the build quality of 5d series. Does the 6d feel like a toy compared to 5d? I have never held one in my hands.

What about autofocus system, which one is better? How their outer af points perform? Can you shoot f1.4 lens without focus and recompose method?