Interesting question. I think for a Disney trip, you can’t beat the proximity and amenities of Wyndham Bonnet Creek. If someone told me I’d be staying off property and I could pick my choice of resort, WBC would be my first choice.
But I voted for Marriott/Sheraton/Westin. Marriott has a larger portfolio, giving people more choices. There are properties that are close to Disney and still very good like the Sheraton Vistana. There are multiple resorts closer to Universal or Sea World, too.
Overall, I think Marriott has a nice mix of properties to target different audiences - Harbor Lake is great for families with younger kids; Lakeshore Reserve is a higher end experience.