I went to the Haye v Enzo fight and stayed at the Ibis. It was crap.

On the map it said it was dead close to the arena as the crow flies but a little bit of Water called the Thames meant you either had to walk around the damn thing to the arean or go under it. The underwater walkways are shut late on.

Also if the fight starts at 2a.m. like the Hay Enzo fight the tube will not be running. Get yourself a taxi booked early and go early by tube as well.

Loads of bars/ restaurants in the arena that you can go to.

As for hotels not sure coz did not look apart from crap Ibis