AF system, does the Canon 60D or the Sony A65 stand out in regards to a quicker / more accurate AF system?
Though I don't like to depend on a dry list of statistics, there's no getting around the fact that the 60D has three times as many cross-type AF points so it would most likely be more accurate with its AF, particularly with fast-moving subjects. For that reason, I would buy it over the A65 if I had to spend my own money on it. For the record, I'm NOT saying that as a Canon owner.
Build quality, would you consider either camera better made than the other or are these two cameras that would last a long time.
Though it doesn't have a magnesium body unlike its predecessor, which many considered to be a step backwards, the 60D is no slouch in build quality and I'd expect it to be pretty resilient though I don't put its toughness in the same league as Chuck Norris or the Canon 7D.
I haven't handled the A65 personally but I'd be astonished if its build quality was significantly better or worse than the 60D.