Hello Brian,
Thank you for your question. I noticed that no one provided an answer so I wanted to follow up.
The Beautyrest Recharge and Beautyrest Recharge World Class models have been great for us. We have had just a handful issues so far with warranty concerns, so we're very happy with these brands. That being said we removed all the lower density filler foams and we don't have any monster pillowtops that have that false loft of lower density foams. This brand is also not one of the nationally offered Beautyrest brands. It is custom made / branded for that particular retailer and may have differeing design elements.
The Simmons Beautyrest World Class Elite Rosemont at Sleep Country Canada looks like it has a very, very thick pillow top. So, it will feel really nice, but it will probably develop a deep body impression over the first 6 to 18 months. You just can't have a 6-8 inch comfort layer without a good body impressions developing.
Saying it's like the Westin Hotel beds is a goofy thing salespeople do to build creditability for their product. W-Hotel beds are actually not all that special. They are a beefed up Beautyrest Classic mattress with foam-encasement. Westin Hotels also replace their mattresses regularly, whereas you are looking for something that will last a long time.
Recommendation: I would stick with a thinner pillowtop or plush top from the Beautyrest or the Beautyrest Recharge Lineup. You can always make a mattress softer if needed with a latex or memory foam topper, but I would try to find a thinner plush or pillowtop mattress that you still love.
Bonus Question: Beautyrest Recharge World Class Ellite is a custom design from Sleep Country Canada apparently based on the Beautyrest Recharge World Class lineup. My apologies, but since it's not a regular option I don't know much more about the brand. It could be almost exactly the same, but they wanted to differentiate their products. Beautyrest is usually pretty good at not being too misleading with the naming, so it is probably an equal or better design than the regular Recharge World Class models.
Please feel free to give our staff a call if you have any other questions at (888) 945-5949.
Best of luck with your search and thank you again for your question!