While we enjoy the occasional Bonnet Creek stay, it is not onsite Disney. It is as close as you can get, but not the real deal. For various personal reasons, the convenience of staying onsite Disney is worth it to us. I am not against staying offsite and will "make do"
with it if I need to. We own a minimal amount of DVC points which were purchased mainly for the annual pass discount (purchase price $2500, family of 5 who throughout the ownership purchased approx 6 premium annual passes so far. Discount is $125 per premium annual pass times 5 family members times 6 = $3,750 plus am able to use the points to add nights here and there where needed).
I haven't used the new RCI Wyndham points system to trade into Disney. However, back in the day, when DVC was with Interval International, we used to be able to get DVC trades for as little as 28,000 Wyndham points. Of course, this took diligent searching and many 2 am to 4 am Interval checks. But, Bonnet Creek for 105,000 (or higher) WYndham points couldn't compare to a 2 bedroom Old Key West for 28,000 Wyndham points plus fees.
To the OP,
What info are you looking for in regards to staying onsite for a month?
Is it about room assignments? They are pretty good about keeping you in the same unit. I have never had to change units at the same resort. I have changed resorts and bell services is great with moving your stuff.
Is your question about which is the best resort to stay at for a month? I am no help there, because as long as I am onsite I am happy as a lark.
Is it about having a car vs. not having a car? I can go on and on with possible questions. Just post some more specifics and I will try to help if I can. Plus I know I am not the only one on this board who has spent a significant time at Disney.