I've been to both and I agree that DLP is a pile of wank. I go to Florida every year though.
If you aren't tied to dates and don't mind flying indirect then you can set up an alert on sky scanner for cheap flights around an approximate date - I've seen flights as cheap as £199pp indirect that way. The most I've paid for economy seats was £1,400pp for last minute in August. We usually pay less than that for premium economy so that was crazy expensive.
Also cost depends on your eating habits. You might as well stay in a Deluxe Disney hotel and get the free dining if you eat in restaurants every night. If not then a villa or value Disney hotel is the way to go - factor in the cost of $20 per day to park into the equation as you can use the free bus service if you stay on site. Buses run every 20 minutes or so.
The cheapest holiday I managed was £900pp including flights, accommodation at Pop Century for 14 nights, and park tickets included, but that was a few years back (4 of us). The most expensive is this years once in a lifetime blowout for six of us which was £20k in total (deluxe hotels at Disney and Universal, park tickets, dining plan and premium economy seats in August) so there's a MASSIVE difference depending on the type of holiday you want.
You need two weeks though. The main attractions:
Magic Kingdom (2 days)
Animal kingdom (1-2 days)
Hollywood Studios (1 day)
Epcot (2 days)
Blizzard beach (1 day)
Typhoon lagoon (1 day)
Disney Springs is good for evening entertainment and you can do mini golf too.
Then you have
Universal Studios (1 day)
Islands of Adventure (1 day)
Volcano Bay (1 day)
Sea world (1 day)
Discovery cove (1 day, bloody expensive but the best day ever)
Aquatica
And if you want to venture further out there's the Kennedy Space Center, Busch Gardens, Gatorland, Premium Outlets, Malls, etc.
So much to do and so little time!