We went with a zero reveal and like it very much:

The corners on the sink are not 90º, but they're not too far off. The edges on both the sink and the countertop are "eased." As far as the countertop edges, that's really just a matter of preference. We like simple, so we went with eased (which may be the same as or close to "pencil"), as it matches the style of our kitchen.

If I were choosing between bullnose and 1/2 bullnose, I'd go with 1/2. A drip running off a 1/2 bullnose will get to the bottom edge and drop to the floor. A drip running off a bullnose is likely to keep running around the edge until it gets to the cabinet face and then run down that way.

Ogee edges are very compatible with traditional kitchens. This particular ogee I don't find very attractive, but hopefully your fabricator offers one that is more pleasing. You might want to take a trip to his/her showroom to see what they offer.

Read the complete thread "counter top dispute with fabricator" for some insight into some of the pitfalls and shortcuts that some unscrupulous fabricators use to save time or money at your expense. Read any other pertinent threads as well.

Making dinner and I just realized that you can't have a negative reveal (stone sticks out further than sink edge) on a Stages sink. It would make the accessories not fit, like the cutting board I was using when I had this revelation!

@suzanne_sl: Yes indeed no negative reveals, otherwise the accessories will not work. Thanks for the photo. That helps a lot. I am going to show it to my installer!

This is the edge details that my installer offers:

http://www.avalosmarble.com/uploads/Avalos_-_Edge_Detail_Sheet.pdf

and we are thinking of either E10 or E12.

@Phil Rudy Sr.: The installer we are working with is fairly reputable (all 5 star Yelp reviews) and we have worked with them before and had a decent experience. However, you are right, I should keep a close eye to make sure that nothing goes wrong.

@Joseph: I heard that with positive reveals water can log at the interface and get moldy with time. Is that something that your clients complain?

Make sure it is understood how important the cutting board ledges are. The cutting boards will not fit if the measurement is wrong. As for round or square, I could do either and not care.

Mine is a cast iron Kohler sink that has a cutting board and a basket that sit on the ledges. This is the way my granite is. The cutting board fits perfectly and rests on the ledge of the sink.

One more photo. This is the Stages 45 sink with the cutting board in place (I almost always leave it in the sink as I use it constantly) and one accessory tray. Notice the fit with a zero reveal.

The bottom line is that you can't do a negative reveal because the excellent accessories won't fit, but you could do a positive reveal if you wanted to; however, that would leave a gap for bits of cut onion, pepper, parsley, etc. to fall onto the ledges.

I have been in this industry since 1977. A zero reveal is most definitely the day to go. Exposing part of the flange of the sink is a place for water to sit and aggravate the grout. As mentioned above, any overlap of the stone over the sink will cause conflict with accessories. Not only that, water will have a tendency to roll under that over-hang and collect nasty debris. Often granite fabricators come up with reasons for positive and negative reveals. In my humble opinion, they are doing that for one of two reasons. 1. They do not have to be as precise. 2. They are dealing with a sink that is not square and true. When a sink side is wavy or not precise, that is the time for breaking this long held industry rule.

Thanks to everybody for their wisdom. I am going to ask for a zero reveal from my fabricator.