We are looking at going to Legoland during half term, however having never been to Windsor / Slough - I have no idea on hotels.
As a package deal I am being offered;
Holiday Inn Express T5
Doubletree by Hilton Woking
Holiday Inn Slough - Windsor
Doubletree by Hilton St Anne's Manor
Are any of these are good for a night with two under 5's? Also do any of them have FREE parking - I can't seem to find one that doesn't charge - I assume due to the fact it's near Heathrow?