It mostly depends on how you use your sinks and counter. Do you or your partner splash a lot? Then you need larger sinks. Do you wash out your lingerie? You may need a bigger sink. Do you have lots of things sitting on your counter, or do you set out a lot of things when you get ready for the day or night? Then you will prize counter space. Only you and your partner can decide these things.

Most here say that a 60" vanity is not "big enough" for two sinks. A 68" vanity should fit them easier. Just think about things like elbows hitting walls and drawer space you need when you plan the vanity. Some find that a large single trough sink with two faucets gives more space at the sides for drawers and elbows. Think about top drawers that have room around or in front of the sink(s).

Thank you. we managed fine with 1 sink. I am concerned about appearance and resale. Is 68” too cluttered with 2 sinks. Or is one sink a deterrent for a master bath which will be done with high end finishes. Thank you again!!!

If you plan to resell anytime in the foreseeable future (i.e., before styles change anyway), then two sinks is preferable. I find them just fine even in the dreaded 60 inches, but we don't keep much on the counter, between drawers and medicine cabinets.

As for size, I honestly recommend seeing or measuring some sinks in person -- I put quite a small one in my daughter's vanity, because we needed the counter for washing her when she was an infant, but it's still ok for hands and other stuff. Ours are a size larger, which I prefer.

IMO a larger one sink would be my choice after 50+ yrs of marriage there is no time we needed 2 sinks for any reason but I sure do like the extra counter space.

My favorite would be a large one sink with a faucet that has a "swingable" spout, so that if we did need to share, we would be able to share the faucet. In the extra space, I would have a vanity open knee space with a tall stool so I could sit and do my hair., and lots of drawer space in between.

We have had two sinks in our only full bath for the last 11 years. We mostly used it to hold dirty socks, washcloths, and nightshirts. Yes, it was our hamper. At least if we had a cat, it could have used it to sleep in! When we remodeled, I did one sink, and my counter is completely open underneath because I may need a wheelchair one day. I can now sit on my shower stool and do my hair.

One sink ... the counter space isn't as important as the drawers.

I prefer one sink, especially if there's an attached wall.