your welcome Shaun.
the two rules make it easy to remember.
1 If you are a tourist its good to have a weak USD then the exchange rate is good between the AED and Sterling.
2. If you earn in AED and want to convert back to Sterling then a strong USD is good.
The short term view is that because interest rates have risen globally and in particular the US, the pound is weak against the USD at the moment, longer term it will start to stengthen
At the moment you will get around 6.4 AED to the Pound. Last summer it peaked at 7.1 when the dollar hit a low againt sterling. A few weeks ago it was 6.3. But make sure you shop around there can be huge difference in exh rates.
Unlike the UK, Banks in UAE do not give a favourable exch rate. The better rates are to be had in the malls etc.