Of the three, I prefer the last one that is under mount for several different reasons.

To me, it's prettier and has a more timeless look to it.

I'm not a fan of the top mounts, I don't care for the way they look and from what I've heard, their installation can be more problematic in regards to leaks. I also wonder if they are more of a fad of sorts.

With an under mount cleaning the counters is going to be easier.

I'm short and for short people, those sinks are incredibly difficult to use, even if like those, they're not as tall as some can be. Something to consider if you ever need to sell I guess.

I also prefer undermount. If you do not mind a sink sitting on the counter then number two is pretty. It will only show in the mirror if the mirror is mounted that low.

Thank you for your input. I do agree that undermounts have a cleaning advantage. In my kitchen I would only have an undermount, I don't feel as strongly about it in the bathroom

I also would prefer an undermount sink. Here is one from wetstle that is 48"..maybe too big though? Also might be expensive.

http://www.wetstyle.ca/product/vc-848u-products-undermount-sinks-cube-collection

Yes a 48 inch under mount would be too big.

Wetstyle has several sizes of the Cube in an undermount version. I have their Ove sink in a 36 inch undermount in my hall bathroom. Our remodel isn't finished yet, so I haven't had a chance to use it yet, but it looks good.

Algeasea, did you get your Ove sink in matte or gloss? From whom did you purchase?

I think it's matte. I'll go over to the house and check. After trying to find it online and not having any luck with better pricing, I had my plumber get it through the local plumbing supply house he uses. Turns out they're the authorized dealer for Wetstyle in the area. The upside is if there are any problems, they'll take care of it.

I can't find the invoice for it, or I'd tell you what we paid, too. It was ordered separately from the rest of the fixture order after my first choice was unavailable. It wasn't easy to find a 36" undermount trough sink at a price I was comfortable with. As often happens in building and remodeling, as time dragged on with no sink, I adjusted my comfort level to get what I wanted in this bathroom.

Here's a photo. It looks like it might be gloss, after all.

Algeasea- that looks beautiful. What did you use for your countertop? All the white quartzes are starting to the same to me.

One more question for you: what size cabinet is it installed in, did you have to notch the cabinet sides to get it to fit?

The quartz is Cambria White Cliffs. The cabinet is custom and built to take a trough sink. I think it's 60" long and 21" deep.

TY Algeasea- truly beautiful. I hope you will do a reveal when you are finished!

I think I finally figured out my sink- I am going with the LaCava 5258, it is not a vessel but still has some presence via a pronounced on counter, very square edge.

That's a gorgeous sink.