South-east Asia is more disparate than Europe in general. (as)

• Europe isn’t as disparate as South-east Asia.

The summit may not be quite as productive as it appears at first glance. (less)

• The summit may be less productive than it appears at first glance.

It’s not the same, but it’s not as bad as I thought it was going to be. (better)

• It’s not the same, but it’s better than I thought it was going to be.