This cameras are in the same league.
Of course the C-765 has the advantage on optical zoom.
Both camera are easy to use, as long as you leave them in Auto mode.

Both have all the nice manual override features that the more advanced photogapher will appreciate.

Here is a link to a side-by-side comparison of specifications:

http://www.dpreview.com/reviews/compare_post.asp?method=sidebyside&cameras=canon_a85%2Coly_c765uz&show=all

Right under the red stars is a link to what owners of the cameras have to say.

...
..
.