Depends entirely on usage. If you find that you rarely go over the 200mm range and are always hankering for speed, then the 80-200 would be a smart way forward. To see if you would adapt to a loss of VR, turn it off in the 70-300 and see if it makes any practical difference to your shooting.
Depends on what you find deficient in the 70-300, more than anything. The 80-200 will also handle differently, being a heavier and larger pro spec lens.