Sorry, but I disagree with the assessment of the Abuja Sheraton. Half of the rooms face the highway and are very loud because of traffic and the round-the-clock horn honking at the intersection. Half of the rooms on the other side of the hotel are loud at night and into the early morning due to noise from the club. The only quiet rooms are on high floors overlooking the pool. The fools at the front desk don't even know on which side of the hotel their rooms are located! Less than half of the rooms have been renovated recently and the un-renovated rooms are quite shabby.
Only about 10% of the rooms at the Abuja Sheraton have internet. Those that do (mostly on the club floors) have slow, unreliable connections. The guest use computers in the lobby area are virus-ridden and slow.
The food at the Abuja Sheraton (at Papillion, the main restaurant) is of marginal quality and very expensive. The breakfast buffet is disgusting. The Italian place is okay, but expensive. The steak house is excellent, but very, very expensive.
The Elephant Bar is not the place to go for a quiet drink with your friends! It is full of the same aggressive hookers every night. On most nights Western males get accosted before they even enter the bar. If this is what you're looking for, the Abuja Sheraton is your place!
I highly recommend the Abuja Hilton. It is the only decent place to stay in town. Comfortable, quiet rooms, excellent staff and excellent food. It's more expensive than the Sheraton, but worth every Naira.