I don't have hotel experience but I've rent several vacation rental units off-site (condocs and townhomes). Not sure the size of your group but these units are really nice way to go and very comparable to hotels. We usually travel in May and can find units ranging from $65/nt to $80/nt for more resort-style communities.
Windsor Hills area is very popular, nice and close to Disney. We rent alot on the East side of Rt 192 as we prefer the more rural area, Terre Verde is really nice and quiet that time of year.