The biggest negative is the horrific pressure to attend "owner updates".
I am a Wyndham owner, and have gotten to the point where I have fun with these. I've never attended a timeshare tour for any developer, and certainly not with Wyndham, and they can see that. So, my first response is, "Heavens no! I've never attended one, and I want to keep my perfect streak intact." At my last check-in, the body snatcher took one look at the CRM report, and said "Yeah, you never do go to these..." and glumly sent me on my way.
If they press--and sometimes they do, particularly if they are not just body snatchers but also on the sales staff--I ask for a sheet of paper and a pen. I write a number on the paper, fold it, and hand it back to them. "This is my consultant rate for 90 minutes. If you can beat this, we'll talk."
The last time I did that, the sales agent gaped and exclaimed: "Wow! What do you do for a living?" And that was pretty much the end of that.
still doesn't come close to Disney benefits, proximity and comfort.
Benefits? True. You don't get early entry, early shots at LLMP, etc. But, as Disney has trimmed the onsite benefits, this has mattered less and less. However last time I stayed there, they had the Must Do Disney loop on one of their TV channels! My ex was not happy; she was hoping to escape Stacy by not staiyng in a DVC unit. (This tells you how long it has been, in part).
Proximity? Of some, but certainly not all. If you ever stay at OKW or SSR, you will often drive past Bonnet Creek on your way to/from other Disney destinations.
Comfort: I will put a Bonnet Creek 2BR up against just about any DVC 2BR in the system. The dining table at Bonnet comfortably seats six, it's not a galley kitchen, has full-sized appliances, and the living room is apporpriately sized for the unit's sleeping capacity.
Don't get me wrong: DVC was worth every penny, I'm glad I bought it, and prefer it to Bonnet when I am visiting WDW. But it's an outstanding option that can be had at a very small fraction of the price.
I'm not sure about staying at Westgate
You could not pay me to stay at a Westgate property. Orlando is chock full of much better options. They do have great locations in Park City and Gatlinburg, but I've never stayed at either. I have eaten in their Park City pub; it's a good burger.