You can see that we've stayed both onsite and offsite. Here are the offsites:
1985 & 1987/88 offsite motels - both gone now, they were clean, pretty and quite acceptable for sleep/shower/sightsee for very little money.
1996 Travelodge East Gate Orange ~$35 - never again. Dirty, with rude staff.
1998 HGVC at Sea World ~$150/3nts on a timeshare rental & sales pitch. Gorgeous luxury 1BR, wonderful amenities and a true resort feel to the entire place. Our whole family is really looking forward to a full week timeshare exchange into a 2BR here later this year. Lovely pools, plentiful activities, pretty landscaping & night-lighting.
1998 Westgate Vacation Villas ~$199/week on a timeshare RCI bonus week. Worth the cheap price paid for a large 2BR villa but not a first choice resort selection for me. Beautiful villa, loads of activities and nice pools, but pushy sales staff and limited landscaping. Probably would seek elsewhere first.
1999 Homewood Suites LBV ~$199/3nts on a timeshare rental & sales pitch for Cypress Pointe. Worth the price paid, clean, with pretty nice 1BR suite but much more limited than a standard timeshare condo. Decent cold breakfast but a small, unheated pool. Would only return for a one or two night stay, not for a "vacation."
1999 Sheraton Vistana Resort (timeshare exchange week). Wonderful resort with lots to do, pretty landscaping, nice 2BR villa in a great location for Disney and it offers attractive pools. Would definitely return.
2000 Marriott Grande Vista (timeshare exchange week). Fantastic resort... see comments on HGVC above - they apply to the 2BR villa we had here too, though we don't happen to have immediate plans to return. Very nice.
We really enjoyed our stays at HGVC, Vistana and MGV more than our onsite stays at Disney's FWC & Homes, All Stars and DxL (now called PO-R). Even with our stays at the Disney deluxe resorts, we missed the space and amenities that these offsite properties offered for the price. Disney's DVC resorts offer all this, plus theme, pool slides and transportation to the parks but we choose not to spend what those 2BR rentals would co$t us.
We also ALWAYS drive our vehicle to Orlando and would not recommend staying offsite without a car. With a car and a nice property located near the parks, you can reach the entry gates in the same amount of time it takes to wait for and ride Disney's buses. Do see the threads on "best/worst offsite" vacations.