What hotel would you recommend for the O2?

[Greattimestroubledtimes]

I am taking teenagers there, as seems to be my lot these days, and so need two rooms ideally, cheap and nearby - any good experiences?

Holiday Inn Express North Greenwich is the nearest (10 minutes walk).
Or try Ibis Canary Wharf is also close - only a short Tube/DLR journey.

Thank you!