I spent 8 days with my 2 kids and my mother at the Golden Beach Motel Sharjah, which is part of the Sharjah Carlton chain on the Al Meena Road on Sharjah's east coast.
For the price, the motel gives excellent value for money, we had a 2BR apartment where the rooms, linen and towels are all very clean. There is a generous kitchen/diner with 2 sofas and a TV. There is also a kitchenette, with cooker, fridge, but mysteriously no crockery or pots and pans. We overcame this by getting picnic stuff from the local supermarket, and had all our breakfasts in the room, thus avoiding the 65AED (£12!!) charge for a continental breakfast.
The hotel has an unheated pool, and a nice stretch of beach, unfortunately it is co-located to the Al Khalid Power and water factory (essentially a large refinery), which is a bit of blot on an otherwise nice view from the very large balcony. BUT £100 per night for a 2 bedroom apartment with pool on the beach seems to be excellent value for money in the UAE, especially for a family group in the middle of the credit crunch and with such poor exchange rates.
If you want to get away from the power station you have full access to the (much) better facilities at the Sharjah Carlton hotel. There is a shuttle bus on request from the motel to the hotel. The Sharjah Carlton has a nice heated pool, a tennis court, a nice beach, with some water sports available (and the power station is a blur on the horizon)
If you want the lap of luxury it is all available south of the Dubai Creek for £600 per night. If you need good value for money and a bit of sunshine and don't mind being in Sharjah then go for the Golden Beach Motel. All the staff are attentive and polite and always seem to go the extra mile for you.
One important thing to remember is that Sharjah is dry (i.e. no booze for sale). Private consumption in your room or balcony is OK, so stock up at duty free and you'll be fine). If you forget your duty free's then get a taxi to the "hole in the wall" near the Ajman Beach Hotel in the neigbouring emirate of Ajman, about 25AED each way in a taxi, where you can buy anything alcoholic, as long as your willing to pay UK prices.