I'm honestly shocked at even the rate difference between VS and VU! VS quoted me $89/night and VU $120/night. I thought they virtually do the same thing? Shouldn't they both be able to get pretty comparable rates??
Not really. Part of what you are paying for is the customer service levels. VU seems to have a slightly higher level of customer service just from reports I've read around here before. (Examples.... VU charges the higher rate upfront which locks in your reservation, but if they can rebook at the 60 discount rate, They will pass that saving along to you in the rate you pay. Also, VU has been making a proactive attempt to contact the people who hold rental contracts with them at WBC after WBC announced (or it became known) the new $12 per day fee for non-owners and is refunding the $12 per day as they advertised as "No additional Fees"..... even though they had no advanced warning and this is something out of their control. In contrast, VS hasn't really contacted anybody from what I've seen letting them know about the new fee, and isn't really taking any action to negate the new resort fee with existing contract holders)
The other big difference between the 2 is their costs, based in part on the way they do their rentals. VU and Ken/Denise price are both Wyndham Owners who rent their own points. Therefore they have the costs incurred in aquiring those points and the monthly maintenance fees that must be paid.
VS is more of a broker. They basically pay owners a fee for the use of the points. They don't actually own the points themselves, so they don't have the initial purchase costs to deal with, or the monthly costs required in maintaining that ownership. I don't know what they pay the owners, but they in theory could very well be paying the owners less that what the maintenance fees on those points are. (IE... paying owners the rate of $4 per 1k points, while the MFs could easily run in the $5-6 per 1k range).
They are both reputable companies with many good reports from people here on the DIS, so I tend to suggest people compare the 2 on cost, as well as the other differences between the companies like Customer Service levels, and contract/policy/cancellation differences that might come into play. Ultimately the accommodations are the same, so the deciding factor could easily be who you are doing business with.