I agree with you over your concern that the white farmhouse sinks may be less durable than a stainless steel sink. We have seen posts on this forum of crazing, cracking, difficulty of install (with fireclay that has irregular sides), requirement for a grid so that a dropped pan does not chip the bottom. At the same time, there are many who are happy with their white farmhouse sinks. I would say that the fireclay is the most problematic of the white farmhouse sinks.

There is a Pro who frequents this forum who swears by the Elkay white composite sink in Ricotta, but I have also seen posts from people who have Ricotta and say it is harder to clean wine, coffee, tomato sauce etc. from that sink.

I would like to recommend a stainless steel apron front sink. No worries about stains, cracking, boiling water. We have the Elkay Crosstown 16 gauge with corner drain.

(this photo is not our kitchen)

That was exactly my first thought! Those two things do not go together.

I have a Whitehaus: Fireclay Sinks - Whitehaus Collection

I have a stainless grid on the bottom. No problems with cracking, chipping, glazing. A most excellent sink.

" I'm a bit worried about this decision since it will be installed on a quartzite waterfall island so if something goes wrong, replacement will not be a simple affair."

People mistakenly believe that tops must be removed to change sinks; they do not. Sinks are changed by removing the face of the sink base cabinet, not the countertop. Cutting in a new larger sink is an all-day job for a skilled technician; a replacement with the same sink is half that.

There are tradeoffs with every sink, however, I'm not a fireclay fan as it's unrepairable. The Whitehaven is a proven workhorse and Kohler will give you a replacement sink if it fails as will Elkay with their Quartz Luxe. Here that is in a short apron Ricotta:

Appreciate the responses - we will likely do a more contemporary farmhouse sink vs a more traditional look like the quartz luxe above, to me the ergonomics are just better. Also the sink is facing the galley so not featured on the island

The most durable will definitely be stainless. We had a stainless apron-front sink and loved it. We actually kept it (14 years old) and reused it in our mudroom. We now have 2 Kohler cast iron sinks and the prep sink got a chip after 3-4 months (no dishes ever go in this sink. We have no idea how it happened). Pretty bummed.

That is what I said in my comment above (with photo of SS apron front sink). OP appears to be set on white.

I will reiterate though, since I think it was overlooked when I said it before, that those white Quartz composite sinks will absorb stains like wine, coffee, soda, etc. - including the Elkay models - and require more scrubbing than other white sinks or certainly stainless steel.

Just an opinion on a stainless farmhouse sink. (Kohler)...bad choice for me. Very good quality product; the width and depth of the sink was perfect. However, I spent a lot of time polishing the bottom scrapes from pots and drip marks on the apron. (I am not a messy cook). This house I did a Granite/Quartz Composite. Love it...easy to keep clean.

Found this link and she has good suggestions to give you some ideas:

https://theinspiredroom.net/2016/06/06/kitchen-farmhouse-sinks-apron-front/

Sorry but a farmhouse sink in a waterfall counter IMO is not a good choice one too farmhouse and the other waterfall counter belongs in a very contemporary space

We had a Shaw for 13 years in our previous house and have one in our current kitchen which we remodeled in 2018.

Looks like the Elkay Quartz Luxe only comes in 36", no 33" option available..

Have you decided on a sink? I am also having trouble deciding. Wondering what you chose.

Another vote for stainless steel. It's a bulletproof workhorse that could possibly outlive you.

"Looks like the Elkay Quartz Luxe only comes in 36", no 33" option available.."

Karran makes a retrofit 34" which is an excellent sink. If you've got some fillers on the side of that 33" cabinet, you're in luck.